birthday ideas?

I've been asked by a few people what I am doing for my birthday. I don't know...I don't know what there is to do anymore. I would like to have a "get together"...but my apartment is really small and we don't have the house yet. Does anyone have any ideas? The only thing I could come up with was Double Dave's Pizza (on Westheimer)...but I don't think this is considered a cool thing by most adults. Help! If I did do something for my birthday...I don't know if I should do it on Thursday, Friday, or Saturday. (I don't even know if anyone would show up.) Anyone any ideas?