Yeah, play some Less Than Jake... or Patent Pending's "Cheer Up Emo Kid", can't go wrong with *that* song...
Then play some: Hot Hot Heat. Play the songs: "Bandages", "Goodnight, Goodnight", "Oh Goddamnit," and maybe "Le Le Low." No one can resist those songs, especially the first 3...
Play Cartel's "Hey, Don't Stop" and also see if you can find the "Honestly" demo...
The Get Up Kid's no longer exist... but you should most definitely play "Ten Minutes", it has a lot of energy.
Babyshambles suggestions are pretty good, especially the Killers/the strokes. Also play something by The Shins.
That's what I'd play, at any rate. Hope it helps. =)