Both are accept-a-ma-fied. (Sorry, it's like 2:30am and I can't go to bed because I need to stay in my friend's room. They left to help out another drunk friend get back to campus so here I am. Waiting in their room when I could be sleeping. So yeah, I'm a bit... sleep deprived.)

I'll add them to the listing real quick like. 

As for how to make an entrance, feel free to do as you'd like. You can have you're character arrive late and have a nameless NPC explain the party later that night to him. Or he could happen across a flyer that someone posted. Feel free to be creative with it. You can't really do it wrong. :P