Playing $1-2 no limit My hand get pocket fours no one raises pre flop 5 players in the hand flop comes 9-4-J and every one checks to me I 'am the button I bet $20.00 ,I get one caller the turn card comes it is a  4 ,I have Quad fours how to bet to keep this player in the hand,so I take my time look at my cards a couple of times look at the other player looks like he is ready to fold so I bet $10.00 he thinks about it for a while and calls .Next card is an A ,he goes all in thank you I call and take down a $250.00 pot.