"Sure, why not?"
"Sounds great! I'll be there!"
"I'll need to check I'm not busy, but I guess I could come."
"I'm not sure..." (Parties aren't really your thing.)
Greet them politely, thank them for inviting you, and enter the house.
Greet them happily and give them a hug, then enter the house.
Greet them back casually, ask how they are, then enter the house.
Smile politely, returning their greeting, and then enter the house.
Head over towards them and strike up a conversation.
Decide to stick by your friend for the night.
Greet them, but do not spend the whole night chatting with them, and meet new people at the party and talk to them.
Decide to stick by yourself for a bit, and let people come up to chat with you.
Feel uncomfortable, and think about leaving, but decide to stay for your friend.
Have a drink or two yourself.
Don't drink anything. It doesn't bother you, but you don't really like drinking.
Have a drink or two, and eventually start up a drinking competition.
Steer clear of the dance floor. Dancing's not really your thing.
Stay clear from the center of the floor, but dance off to the side, light in movements.
Grab a partner and head to the dance floor.
Totally steal the spotlight, not afraid to show off your moves (good or bad).
Uncomfortable. I kind of wish this was one of those small, tight knit friends parties.
A little uneasy, but not by too much. You've seen worse.
It's really loud, and a bit irritating, honestly.
Excited. You love crowds of this size!
Don't participate. What a stupid game. You're not into stuff like that.
Reluctantly participate, out of curiosity.
Don't participate, but watch.
Gladly participate. What a great get-to-know you game.
"No, and I certainly won't if you're here."
"Nah, probably would have seen you before if I did. What's your name?"
8 pm - 9 pm. You don't really want to stay too late. Things get ugly when you do...
10 pm - 11 pm. You stick around a little longer, you're not quite ready to leave yet.
12 am - 1 am. You stay a decent amount of time before you're satisfied and ready to leave.
2 am or later. The real party doesn't start until around midnight, after all.
"Thanks for inviting me, but I have to go! Bye!"
"I have to go now."
"Great party. Thanks for inviting me."
"Sick party. Glad to attend, as always."