Well in this case, you are quite the short stack in the sng. Now, there are already 1 and a half big blinds in the pot, and you want to win some chips. If you had a fair amount of chips you could limp in, but this is usually done when there are more players, since the more ppl that limp in with you, the more money you could gain if you catch the trio. But when its short handed, you might think about raising. Its unlikely they got a pair since you get it once every 17 hands. I would raise 4 times bb. If they fold, you won a bit... and didnt risk losing a lot. If they call, well you have a few options. They do not know what you have first of all... You could just as easily have Ace King. I would take a shoot at the pot no matter what comes. If the flop is big, you pretend you had something and do a 6BB raise or something around that number, or even allin. If its small cards, your probably winning with your pair, so you pretend your bluffing
, and if he calls you thinking you are, you might get a lot of chips off of that person!