For the upcoming long weekend (four days) my old friend is going to be staying at my house. She moved away a while ago plus she's two years older, so none of my friends know her well. (Except 1 or 2 who have talked to her on FB chat.) People have heard of her but no one has actually met her. Well anyway she's meeting my new friends (including the guy I like a lot) and we're all having a sleepover, going to the mall, hanging out and just walking around and stuff. I'm nervous because I don't want it to be awkward and I don't want anyone feeling left out. Any tips?