Pre flop:
In the BB with AJo in your hand and a min raise steal from the SB it is a good idea to 3-bet, to protect your blind, to at least 3xBet so $0.60. If he re-raises you good fold, if he calls re-evaluate on flop, if he folds awesome! +2BB.
Flop:
As played raise his overbet its either a bluff or a very strong hand and we need to find out, you have position and a medium strong hand so raise to ~$3. If he reraises good fold, if he calls try to see a cheap SD as long as if he continues to bet (could consider folding if you feel too weak) otherwise raise the turn because he could easily have the FD and wants to see the river cheap, if he folds awesome! +12BB
If you had raised preflop and he called and then donked like that its a very weird bluffy line and a raise would be in order. I'd put him on an under pair maybe KhJh or some such. Sometimes he will wake up with a set, 2 pair, etc here so watch out, if he seems too eager to get his money in the pot it might be a good idea to fold.
If you had raised preflop and he checked to you on the flop value bet and protect your hand, an overbet would be good since the pot is so small ~$0.60+ continue to value bet and protect down to the river.
Turn:
As played do not check behind here as he is likely trying to see a cheap river on a FD bet like $2+.
River:
As played do not call instead fold, obvious FD is obvious.
