I'm a freshman and this junior guy is trying to talk to me?

[Nicole]

So there's this junior is my French class. I've never talked to him before but I knew of him. One day he just started talking to me and we would always make awkward eye contact in class. I was fine with being friends with him. But then he started adding me on twitter, instagram, facebook, etc. One of my girl friends is a junior and I told her about him and she was like just be friends with him, nothing more! But I can tell he likes me because he direct messaged me on twitter starting a conversation. He will probably end up asking for my number. Should I give it to him or not? I don't know what to do and I'm actually scared hahah please help!
I'm fine with just being friends with him! I just don't want anything more and I don't want him to assume I do because I really don't. He's kinda creeepy hahah