Throughout your time in Stray, you will come across many robot citizens who are going about their day-to-day life. You can interact with nearly every robot you encounter, some you can even nuzzle up to, but not all of them.
For this trophy, you need to nuzzle up against 5 robots throughout the whole of Stray. This shouldn't be too difficult to achieve as there are more than 5 robots you can do this to. Here is a list of 5 robots you can nuzzle against if you are struggling!
The Guardian is the first robot you can nuzzle
The first robot you can nuzzle is The Guardian who you will automatically interact with after progressing through The Slums.
These two lovely robots will appreciate the nuzzle
There are two more robots in The Slums that you can nuzzle against. They can be found by turning around after meeting The Guardian and taking the first left. They are sat around a barrel. Very hard to miss.
The fourth robot you can nuzzle up against
When you first enter The Slums all the robots will run away from you in fear. After The Guardian calms everyone down, backtrack a little and you should see this robot sitting on a seat, simply go up to them and nuzzle their legs.
The next encounter won't be for a while
The first 4 nuzzles will all come quite quickly, but then you will have a lull until you reach the chapter called Antvillage. Here there is 1 robot you can nuzzle up against. They are the robot with a bunch of televisions behind them. To nuzzle up against this robot you will need to go behind him, then the prompt will appear. I surprisingly didn't unlock the trophy here. I am unsure if this was a bug, or if this robot doesn't count.
The final robot you will need
The final robot you will need (or I needed) for the trophy can be found just as you enter Midtown. After coming up through the train station and going under the wire gate, the robot will be sitting in a little side room to your right.
With that, you have nuzzled against 5 different robots. You can find a few more around Midtown if you missed any of these ones, but following this guide should net you the trophy with ease! Enjoy your lovely little silver trophy!