Adjusting my play -- PP 2/4 to AC live 4/8

[MagicFlea]

I'm going down to atlantic city tomorrow to play some poker in a casino for the first time... I plan on bringing 300 bucks and seeing what happens. How should I expect to adjust my play to maximize winnings? All I've played so far is PP 2/4

P.S. any other tips for a first time casino experience in AC? I've read most of the stickies, etc. in the B&M section