[Aces McGee]

If the villain is tight and aggressive, open-limping on the button is a really odd play. However, if I did somehow open-limp on the button, I'd probably three-bet anything I had if it came back to me heads up and raised by the BB.

I can't figure out what he would open limp from the button, though. My best guesses are that he is getting cute/greedy with a big hand (like AA-QQ); or that he had checked the "call" button in advance of the action getting to him with a suited connect or a pocket pair or suited ace or something. If the former, however, I think he'd wait until the later streets to decloak.

So I'm not ready to put him on a monster, although that is the leading candidate in my mind when he makes the original limp.

I don't do a lot semibluffing out of position with a hand that doesn't have showdown value, because it requires me to fire the river in the hopes of him folding. In position, I can check behind. Out of position, he will occasionally bet after I check with a hand you beat, but I can't call that bet.

I like a check-call on the river, having hit second pair. I'm not sure how often you're ahead and how often he calls when you are, but I think he bets a lot of stuff here.

-McGee