I generally play differently during a live game of Hold'em as compared to an online game most of the time.
The best way to learn to play online poker, after you've basically got the game down, is to play a live game of poker with real money and all strangers at your table.
Once you've done the live play, your general outlook of online play will change somewhat, as you will notice, if you were once an agressive player, you will not be so agressive after your live poker playing.