first things first...walk in the door and find a cool guy with an irish accent to pour you an irish car bomb. then order your beer or beverage of choice.
second...walk to the side of the dance floor and get a little buzzed. get acquainted to the crazies on the dance floor...you will soon be one of them.
third...pick up on the songs the live band plays on the weekends and become one of those crazy people you were eyeing on the dance floor who seems to be doing the irish jig (aka white men can't dance) routine.
i try to go there every time i'm in vegas...and i somehow always remember the words to the songs.