This hand from a $2/$5 NLHE cash game last year. Hero bought in for $800 and ran it up a little over $3000 in the first hour at the table - lots of loose crazy play going on. Hero is BB in this hand. Villain is immediately on hero's left (UTG), and has about $2200. He is the ONLY other player at the table that doesn't seem to be playing ridiculously aggressive. He's also the only player at the table over the age of 40. In fact I've probably seen him play 2 hands in total in the first hour I was there. Never saw what he had in those hands, but I've noticed he is definitely a more conservative player than the slew of internet kids spewing chips away in this game. In this hand, V limps in for $5, and somehow the action folds around to me in the BB. I look down at 63 offsuit and check to see a flop. Pot: $12 Flop: 963 rainbow Hero checks bottom two pair, and V bets out $20. Hero calls. Pot: $52 Turn is 6, hero checks, V bets 80, hero calls. Pot: $212 River is 3, hero bets out $120. V tanks until some kid not in the hand calls the clock. Before the floor can walk over with a stopwatch, V raises all in. Side note, while I am tanking, he asks me what I have, so I told him I flopped two pair and left it at that. He asks which two? I don't respond, just want to concentrate What to do...?