Three easy-to-miss signs your new pet is starting to feel at home.
The nap map tells you more than the meet-and-greet

If you've ever fostered or brought home a shelter dog, you know how tempting it is to treat the first 48 hours like a verdict. Are they bonding with us? Are they anxious? Do they feel comfortable here? I don't trust those early answers. The thing I do pay attention to is where they choose to go quiet, over and over, when nothing is happening.
I call it the nap map. Day one might be the corner behind the couch, or under the dining table, where chair legs make a little cage. Day three might be a spot that still has a sightline to you, like the hallway outside your office. A week in, you might notice a rotation: cool tile in the kitchen after a walk, a sunny rectangle by the sliding door at 10 a.m., a dog bed that finally gets used at night. Those patterns can give you clues about how comfortable they are becoming.
When I see them start using more of the house, I take it as one encouraging sign that they're becoming more comfortable with their surroundings. A lot of adoption stories get told like a single magic moment, but most of my good ones were basically boring: the day the dog stopped choosing the tightest hiding spot, the day they slept in a more relaxed position instead of staying tightly curled up, the day they took a long drink from the stainless bowl and didn't flinch at the clink.
If you want to support that shift without turning it into a project, do less and observe more. Keep the same few resting options available (a crate with the door open, a washable bed, a folded blanket on the floor), and don't keep moving them around because you think you know where they should like it. They will tell you, and they'll do it. Over time, those resting spots can give you another way to notice changes in their comfort.
Stop chasing the tail wag and watch the boring routine

I used to get sucked into the highlight reel behavior: the first tail wag at the leash, the first toy parade, the first time a cat headbutted my hand. It's fun, sure, but it can make you miss the smaller signs that they're getting comfortable with everyday life.
For me, one of the more useful things to watch is whether the animal starts settling into the household's everyday routines. I'm talking about the mundane sequence that happens the same way most days: shoes on, keys, leash; or coffee, sink, dish clatter; or the evening TV glow when everyone finally sits down.
I've watched a newly adopted dog go through the whole anxious spiral for a week straight, then, on some random Thursday, they simply followed the routine more calmly. They took their spot on the rug while I put on my sneakers, then stood up when the leash came out. That's when I start feeling more comfortable adding training into our routine.
If you're looking for what to track, pick two or three routine touchpoints and write them down so you can notice patterns over time. Morning exit, meal setup, bedtime. Does the dog hover with a tight mouth when you scoop kibble into a stainless bowl? Do they startle at the click of the crate latch? Does the cat vanish during the blender and then reappear ten minutes later as if nothing happened? Those are the small frictions that may change as they become more familiar with the household.
A calm routine can also be a meaningful sign of progress. A cuddly moment can be encouraging, but a predictable routine gives you more chances to see how they're handling everyday life. When the boring stuff gets easier, you may also notice other signs of comfort, without needing to chase them.
The first time they choose you without asking for anything

Here's another moment I look for that usually happens when nobody is paying much attention. It's when the animal starts choosing to move toward you without being prompted by a treat, toy, walk, or other reward.
It usually happens while you're doing something slightly annoying, which is part of why it feels so personal. You're folding laundry, and the dog wanders in, circles twice, and flops down with their shoulder touching your foot. You're answering emails, and a cat jumps up to curl behind your laptop like a warm paperweight. They simply choose to stay near you.
For me, that was the moment things started to feel different. Before that, everything can feel transactional, even if you're doing all the right things. You dispense meals, you manage the leash, you toss the tennis ball, you hand out a lick mat smeared with peanut butter, and you scatter a few pieces of kibble in a snuffle mat to keep their brain busy. All of that is part of caring for them, but it can still leave you wondering whether they're seeking you out or simply responding to what you're offering.
When they start choosing to be near you without being prompted, it can feel like another sign that they're becoming comfortable with you. It's also when I start being more careful about my habits, because my body language now matters more. If you look, they'll notice. If you move fast, they'll track it. If you always reach over their head, they might tolerate it, but they won't necessarily seek it out. I keep my hand low and sideways, let them come in, and if they lean, I scratch the chest or shoulder instead of patting the top of the skull, which can feel intrusive to a nervous dog.
Don't rush this moment by trying to manufacture it. When it happens, it's ordinary, but you'll probably be in sweatpants holding a mismatched sock. That's what makes the moment memorable for me.