If you approach them they will take it as a compliment. Don't over think and just jump in. Here is a tip find out what you like as you approach them everyday even if it is just to say hi and work on that. People likes people who are similar to them. Use vocabulary like theirs and unconsciously make the same hand gestures. You have to touch a girl to get them to like you so hi fives and if you have confidence hug them but make sure you do that to every one and be friends with everyone and you will be unstoppable.