hoto sticker machines are interactive photo booths where you can take photos and print them out as stickers and have been a hit among teenagers ever since they first appeared in amusement arcades back in 1995. They also allow you to add frames, decorate them with doodle functions or edit the photos themselves. The craze has continued to grow to the point that the first thing teenagers say when they hang out is "let's take photo stickers!" — it's even become a slogan. Here, we will delve into why photo sticker machines are so popular and how teenagers like to enjoy them.