[TomBrooks]

FLOP as Played:
If you check the flop, CO will probably autobet with anything. You could have the best hand. Don't want to fold. Your hand is not good enough to checkraise. I call.

FLOP OTHER:
That being said, I think you'd have been better off betting out and calling a raise. A CO raise might knock the Button out which is good, but if he stays it is not all bad since he could have anything and he is padding the pot for you guys. You might have the best hand. You could wind up giving a free card (though CO probably won't take one.)

Note there are also four cards that could come on the turn that will give you a gutshot which adds a little value to your hand.