[5NL] AJo on button, 2P on paired flop.

+1 to turn bet about $1 for value vs his worse J's and underpairs.

Gotta fold if raised though, I guess.

River bet is probably a fold as he has Q's in his range and maybe even some horribly played A7s but:
- does he never ever do that with a worse J or even TT? meh
- half pot sizing does not exactly represent a strong vbet

Again, if you called, worth making a note of what he had.