12 percent of hand he either raises preflop or calls the blind or a raise preflop.
or puts money in from the SB, or leads from the BB in a limped pot, or posts outside the sb/bb.. basically anytime any money goes in the pot for any reason whatsoever outside the forced SB/BB.

3.2 is his agression factor according to Poker Tracker
In other words he's 3.2x more likely to bet or raise then he is to call.

Against this guy, I'd probably just call and see what he does on the turn.

Pot control is a good thing here.. this guy has tighter stats then me and I know I often have a set here. And I've stacked many players who overvalue their 1pr hands here too...