Table Selection Advice - What Do You Look For?

[getmyrunon]

I've been grinding my way through 25NL and now I'm safely rolled for 50, but I want to improve the other aspects of my game before I make the jump up.

What do you guys look for when selecting a table aside from known fish. Either specific #s of players seeing flop, pot sizes, stack sizes, etc. If you sit down in the game, do you watch a few orbits before you post the blinds / what are you watching for?

I realize this might not apply as much at 25NL as the game is so fishy it's beatable without it, but I'd like to know what to look out for, because I don't really know much about it.

thanks