No male teenage boy would write ANY of those to another male teen friend. With someone who was just a female friend, don't use any of those except MAYBE "a new year's kiss" and even that would suggest that the you wish to be more than friends. Don't use the first one, at any time.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Grammar GeekDon't use the first one, at any time. (Not to your parents, not to your girlfriend.)
Grammar GeekIf you have a romantic relationship with the person you're writing to, you can use any except the "Love from," one.Thank you so much Grammar Greek. Why the first one can't be used at any time? How about the closings