112 MTT. 4 tables left, about 30. Top 9 get paid.
Blinds are 400/800
I'm BB w/
[2s]
Folded to Button, young guy, early 20's who limps. We are the only 2 that have been at that table the entire game. He doesn't play a lot of hands, but will play most hands the same way. Limps, rarely raises no matter the situation, but will call a raise most times when he limps. He limped and called an All-In earlier with KT offsuit and busted a better hand, but I haven't seen anything else bad from him.
He of course, limps. Strange move as 1st in, but his normal move.
SB is an older man, late 60's. Very tight. Short stacked almost the entire time he's been at the table. I have him covered. He limps.
Since I know Button is probably calling a push I check.
Flop is
[7h][9h]
SB checks. I have exactly 5000 left.
We just had 3 people move to our table. The 1st 3 hands they saw, I moved all-in. First hand I had garbage on the button and took the blinds. 2nd hand I had
[Kd] and again took the blinds, but didn't show. 3rd hand I had
[As] which I showed after taking the blinds and the old man's limp. They probably think I'm a bully, but the kid on the button has played with me the entire game and probably remembers me seeming ultra tight early in the game (due to lack of hands). I'm not sure what my table image is with him since I've been aggressive lately. He also seemed to not be paying attention at time (having to be told it was his turn to act or post or deal a few times) so I'm not even sure if I have any table image with him at all.
Given all this information, what's your move?