What type of game is it (multi table tournament/sit n go, single table sit n go, buy-in amount)? You have no other reads on this player other than "aggressive, average at best"? Has he been playing loose and seeing lots of flops or mostly folding playing a tighter style? How has he been playing hands preflop previously, has he been limping a lot or primarily being aggressive and betting/raising preflop? I don't know many "aggressive" players that limp behind preflop rather than isolate the open limper.

You really aren't giving us much info versus the villain which makes it extremely hard to analyze the hand and give input as to how we would play it. I would understand if its one of the first few hands you have played together but you haven't given us this information.

I would personally have folded the 97o pre even getting 7:1 pot odds, given it is a tournament and you only have 16bbs to start the hand. Im definitely looking to be aggressive at this point, stealing blinds from tight players while waiting to get my money in with premiums.

As played I think Im shoving here. JJ is likely to raise pre. 77 and 99 are very unlikely. J9 and J7 are possible but less likely with two 7's and two 9's already out. T8 is really the only hand to fear, that and maybe a J8ss or JTss, but that is a very small percentage of his range. I think more often your seeing all kinds of random J's, flush draws, etc.