Does my ex still like me..?

Ok c I suddenly seem to like my ex and idk if he likes me. See he's the teaser type and ever since his latest ex (not to be shallow but she was ugly as heck, everyone agrees with me) he's starting to tease me again like commenting on my clothes and all (especialy on days when I look too fly) and he seems to notice me everytime I c him or he sees me in school. are there any other signs you guys can give me to tell me if he likes me again. Any hints that he likes me?