QQ, heads up, one caller, low board....keep betting???

[crockpot]

knowing nothing about the player, i play this exactly the same way. unfortunately there are some people out there who will play the same way with a big pocket pair, and when you pick up a slightly smaller pair you never get a signal to get away from your hand. but you will get called by a worse hand more often than by a better hand here, so keep betting.

however, if you change the situation somewhat (you have 99, flop is 872), i would shut off after betting the flop, because he is so likely to be sitting on a bigger pocket pair that he will call with but is too timid to raise.