What is the nicest way to reject a guy you dont like?

Give him a hug, and tell him that it was really sweet for him ask you out in person. But then explain to him, that you dont like him that way, and that you hope that you two can still be friends. Dont make a discusted face, and dont laugh at him, you can reallly hurt a guys feelings that way. Just smile, and keep calm and cool.

I just did this yesturday when i guy asked me to the upcoming dance, he was upset for a bit. But after awhile he seemed alot better.