[J.R.]

I don't like raising too much because you don't have much preflop stealing equity against a loose opponent (how loose, and how aggressive?), so they have to be play poorly postflop to give your hand much raising value (in a typcial 5-10 game where there is a lot of bad play this is a spot you can pass on unless it looks particularly favorable). With your hand you want to be against an opponent who will either fold when you bet most flops or hopelessly misplay when you connect and call down all kinds of garbage. This hand has value if you play postflop very well and read your opponent well, but if that isn't the case you don't have much of an edge here unless the oppenont(s) play bad (eithe too tight or too loose).

This is an easy turn check as the board isn't drawy (unless this opponent would get agressive on the flop with a pair- which isn't the case on an A high board unless they are bluffing- ussually an A will wait [and a J may not get invovled until you show weakness], but a bluff will fire, IMO), the cards are the type to connect with preflop raising hands, so if he called the flop he isn't scared you have a piece of the flop and is unlikely to fold on the turn (the ones who do this will become obvious), and as an aggressive player may be planning to check-raise (how often does this opponent check-raise?). Plus you have outs, so you have to call the check-raise.