Brick and Mortar Transition
I actually prefer playing in a B&M rather than online. Part of it is the fact that I play better live than I do online. I'd be hitting it up, usually playing on PokerRoom or on Ultimate Bet and then come up short. I play there because I started out there a few years ago, have a good experience there and make good use of their deposit bonuses, reload bonuses and opportunities to satellite in some major tourneys such as the 5-Diamond WPT event in Vegas or the NA Poker Championships in Niagara Falls.
Aside from that, don't run too well online - sometimes it's due to making a dumb mistake and not focusing, other times I just run into a 'rindonkulous' play/call and seeing someone catch a miracle card. That combined to getting a long string of marginal-to-bad hands, or worse, second-best hands.
I like talking to the people at the table though. I find that I have a lot more fun that way. It's hard sometimes when you're locked-in on the one table for 5+ hours, especially when you don't catch cards, but it just seems all that more friendly.
Tip if you're new to a B&M Casino, be sure to watch how players bet (not necessarily how much, but more so the different ways a player can put chips in the pot). Another tip, particularly if you're new is to actually tell the dealer before-hand that you've never played in a casino before. Don't say that you've played online before so that other players may think that you're a rookie, but this will only work on your first one-three tries because your demeanor will already tip off players whether you're used to playing in a casino or not.
Other than that, good luck!