1) Please tip the dealer after each hand you win that goes to the flop. $1 per pot is fine.
2) Larger preflop raises are standard in live games. In a 1/2 game, it's just easier to toss out two red chips to raise to $10 than it is to count out a raise to $7. Don't be afraid to raise larger than you're used to preflop.
3) Keep an eye on player's stack sizes. Online, most players buy in for the max. In a 1/2 game, many of your players will buy in for the minimum. So because of the large preflop raises, and smaller stack sizes, your implied odds
hands will go down in value.