- I would bet a little less on the flop... 2/3 or 3/4 of the pot is enough to signify the strength of your hand, and to make it easier to get away from. On a pot of $4 I'd bet $3.

- If you get flat-called and the turn appears to be of no help to anyone, bet 2/3 of the pot or so there as well. Ditto for the river. Yes it gets expensive, but you'll find you're making more money by putting serious bets out there. When they call you down with a worse hand you'll be happy. When they fold on the river because that flush or straight missed, you'll be happy.

- If your bet is raised on the flop or turn I'd seriously consider throwing the hand away. A jack kicker isn't that great and there's no sense throwing money away on it. However, it would depend on the pre-flop action too. You would think anyone on KQ or AQ would have probably raised pre-flop (not all, but most players would). It would also depend on if you had any particular read on the other player... some players will limp any high card hand and bet on that top pair regardless of kicker. However, most of those same players will just call your bet, not raise you. To me, if you bet 2/3 of the pot or better and get raised, that's usually a sign of strength. And your hand isn't that strong.