What do you say back to a girl if she says she likes you?

Well, coming from a girl, it depends on if you like her back. If you do like her back then you should just ignore it. Don't tell her that you don't like her back because that could cause some problems. Just keep the friendship going!

Also, if you know she likes you and you like her, tell her AWAY from her friends. I'm a girl, and my boyfriend told me by pulling me to the side and saying, "We've been friends for awhile and, I've liked you for a long time."

If your just telling her you like her than that's just about it, if your asking her out say "We've been friends for awhile and, I've liked you for a long time. I was just wondering, will you go out with me?"

Hope this helps!

P.S. If you know the girl likes you, then whatever you do end up saying shouldn't affect her decision to like you or not.