Raise on CO with AQo. Too many limpers that could have anything in that pot. I would have called his reraise and see if he will make a mistake and check it down. If he shows weakness on turn, bet the river. He could have a low flush made, he could have Aces up, he could have a set, he could have nothing, but I doubt it. The best you could hope for is if he were holding something like A-Js.

Contrary to Rippy's philosophy, never push it on a draw, especially if it is not to the nuts unless you are short stacked and have few moves left.