Your dog already knows something is up. The suitcase came out of the closet, and now there's a stranger standing in the kitchen smelling unfamiliar. Your dog is looking between you and this new person, trying to figure out what exactly is happening.

Dogs read context better than we give them credit for. They pick up on pre-trip stress, unfamiliar routines, and the energy of a new person in their space. And while you can't explain the situation in words, you can prepare your dog — and the sitter — so the transition feels less like an upheaval and more like a normal Tuesday.

If you need help deciding what information to pass along to your sitter, our guide on what to tell your dog sitter covers the full checklist. This post is about preparing the dog itself.

The Introduction Meeting

The worst time to introduce your dog to a new sitter is the morning you're leaving for the airport. Everything is rushed, you're stressed, and your dog absorbs every bit of that energy.

Schedule an introduction meeting at least a few days before your trip. Here's how to make it count:

Meet on your dog's turf. Have the sitter come to your house rather than meeting at a park or coffee shop. Your dog is more confident in their own space, and the sitter needs to learn the house anyway.

Let the dog approach first. Ask the sitter to sit down, avoid direct eye contact, and let the dog come to them. Forcing an introduction — kneeling down and reaching toward a nervous dog — is how people get nipped and how first impressions go sideways.

Keep it short. Thirty minutes to an hour is plenty. The goal isn't bonding — it's familiarity. Your dog should associate the sitter's scent and presence with "this person shows up at my house sometimes." Deep trust comes with time, not a single meeting.

Do a normal activity together. A short walk or a feeding session with the sitter present shows your dog that this person is part of the routine. Let the sitter give the treats, hold the leash, and put the food bowl down while you're still there to reassure the dog.

Scent Familiarization

Dogs process the world through their noses. A person's scent tells your dog more than their voice, appearance, or body language combined.

The t-shirt trick. Ask your sitter to leave a worn t-shirt or sweatshirt at your house a few days before the sitting starts. Place it on or near your dog's bed. By the time the sitter shows up, their scent will already be part of the environment — familiar rather than foreign.

Your scent as comfort. On the flip side, leave a piece of your own worn clothing where your dog can access it while you're gone. Your scent on a t-shirt or pillowcase is more calming to an anxious dog than any pheromone spray or supplement.

Don't wash the bedding right before you leave. Your dog's bed, blanket, and favorite toys carry their own scent — and yours. Washing everything right before your trip removes the familiar smells your dog relies on for comfort. Do laundry a week before, not the night before.

Practice Sessions

If your dog has never been left with a non-family member, the first sitting shouldn't be a five-day trip. Build up gradually.

An afternoon with the sitter. Have the sitter come over while you step out for a few hours. Your dog experiences the separation in a low-stakes setting, and you get a preview of how they'll handle it. Did the dog settle down after you left? Follow the sitter around? Refuse food? This is valuable information.

An overnight. If your trip is more than a weekend, try one overnight first. Many dogs who seem fine during the day become anxious at bedtime when the owner isn't there. Better to discover this before you're on a plane.

Gradual departures. If your dog has separation anxiety, practice leaving the house for increasing periods: 15 minutes, then an hour, then half a day. Each successful return reinforces the idea that you always come back.

For more tips on handling your first time away, including choosing the right sitter and managing your own anxiety, see our guide on leaving your pet for the first time.

Dealing with Reactivity and Fear

Some dogs aren't just mildly nervous around strangers — they're reactive. They bark, growl, lunge, or cower. If your dog falls into this category, the introduction process needs extra care.

Be honest with the sitter. Don't downplay your dog's reactivity because you're worried the sitter will back out. A sitter who's prepared for reactivity will handle it far better than one who's blindsided by a snarling 80-pound dog on day one.

Use barriers initially. For a first meeting with a reactive dog, a baby gate between the dog and the sitter can help. The dog can see, smell, and investigate the sitter without the pressure of close contact. Treats tossed over the gate build a positive association.

Watch body language. A relaxed dog has loose body movements, a soft mouth, and a wagging tail that moves the whole back end. A stressed dog has a stiff body, hard eyes, a tucked tail, lip licking, or yawning. If you see stress signals, give the dog space and try again later.

Don't force it. Some dogs need two or three meetings before they're comfortable with a new person. If one introduction doesn't go well, that's information — not failure. Schedule another one.

Consider a professional. If your dog has a history of aggression with strangers, a professional pet sitter with experience handling reactive dogs is a better choice than a friend or neighbor. They'll know how to read body language and de-escalate without making things worse.

What to Tell the Sitter About Your Dog's Behavior

Even after the introduction goes well, your sitter needs written notes about your dog's behavioral patterns. The introduction shows them the dog on a good day; the notes prepare them for the harder moments.

Separation anxiety behaviors. Whining, pacing, destructive chewing, accidents in the house — if your dog does any of these when you leave, the sitter needs to know. More importantly, they need to know what helps: a Kong filled with peanut butter, background music, a specific blanket, being crated.

Triggers. Thunderstorms, fireworks, the doorbell, skateboards, men in hats, other dogs — whatever sets your dog off, list it. Include what the dog does (barks, hides, lunges) and what to do about it (redirect with treats, go inside, give space).

Resource guarding. If your dog guards food bowls, toys, or sleeping spots, the sitter needs a clear warning and instructions. "Don't take his bone while he's chewing it — wait until he drops it and trade for a treat" is the kind of detail that prevents a bite.

Escape behaviors. Door dashers, fence jumpers, diggers — if your dog has escaped before, tell the sitter exactly how it happened and how to prevent it. This is one of those details that feels embarrassing to share but is critical for the sitter to know.

The Day You Leave

The actual departure is often the hardest moment — for you and the dog. Here's how to make it as smooth as possible:

Don't make a production out of it. Long emotional goodbyes teach your dog that departures are a big deal. A calm "see you later" and a quick exit is better for everyone. The dog will settle faster if you leave without drama.

Have the sitter arrive before you leave. Overlap by at least thirty minutes. This lets the dog see you and the sitter in the house together, which signals that the sitter belongs there. Then slip out while they're engaged — during a walk, a feeding, or a play session.

Leave the routine intact. Don't change the schedule on your last day. A normal morning — same walk, same feeding, same routine — sets the tone for the sitter to continue it seamlessly.

Don't come back to "check." If you live nearby, resist the urge to come home after an hour to see how things are going. Every time you appear and disappear, you restart the separation process. Trust the sitter and give the dog time to adjust.

One Link for Everything Your Sitter Needs

You've prepared the dog. The introduction went well. The practice sessions built confidence. Now make sure your sitter has the practical details — feeding schedule, medication instructions, emergency contacts, behavioral notes — all in one place.

CareSheet lets you create a Care Sheet for your dog with everything your sitter needs, accessible from their phone, even without internet. See a live example to get a feel for how it looks.

Once your dog is comfortable, make sure the sitter has everything. Create your free Care Sheet — it takes about five minutes, and it's the final piece of a smooth handoff.