This question is aimed with our target villain being a 7's general pop tends player.

I dont want us to go too crazy with all the math involved or how we utilize our hud/reads to determine our specific opponents tendencies and whether we can use this to exploit them in certain spots on specific boards and so on... 

I'm talking more about the first few hands of play, against a new opponent.

so...

25bb deep.

We call a min raise pre.

We check raise the flop 40 to 80 with a draw/bluff hand and get called.  For this example let say we are holding 7h9h on a 6h 8c 2s flop

turn comes a higher blank ... Say Jd

We lead turn 90 and get flatted.

river comes a 3c

Can we Jam here? Or give up? should we of not led out on turn? should we of jammed turn?? should we of check raised turn? any other point to consider?

Just because I get to the river in this spot a lot and I'm not sure I am approaching it correctly...

thanks