Why would a guy save your picture on his phone?

1. If you don't know him. He's a creep and you should avoid him.

2. If you know him but aren't friends. Once again, bit of a creep.

3. If you are friends. Its common. If its a bad photo, that's very common. Especially if its a photo you took with him or while he was there.

4. If you are dating. If its a good photo, he is most likely using it as a photo to show to people to convince them he has a girlfriend as hot as you :) If its a silly one or any other photo, he probably just really likes the photo. And really likes you too :D