If you were in a room with your own pet and 99 identical pets, how would you pick out your pet (aside from calling their name)?

Reposting a question I saw on reddit like a decade ago. My favorite answer I read was, "I'd take my 100 dogs home and live like a king."

Personally, I have two cats, Sansa and Shere Khan. For both, I could significantly narrow down the options by seeing which cats meowed at me the most. (I swear I didn't teach them to yell, but here we are.) For both, I could bring in a dog to discern which cats weren't scared of dogs. For Sansa, I could wait until dinnertime and put down some wet food, then see who hems and haws about eating it despite having screamed for it. That might not be enough to get it down to just one each, but oh well. I could use 5 or 10 more cats.