He plays a weird style. I was playing a stt sng and ended up heads up with this guy. He gave me lots of problems, I'm not sure how to exploit him.

Small sample size but some tendencies are obvious (limping alot on sb, donking flop everytime i opened pre)
He donks small very often too (1/4 pot) but he can have anything, caught him bluffing a few times but sometimes he has a decent made hand too. When I raise him with a monster on the turn and river he never does anything stupid like 3bet bluff but he might call with some strong sdv hands. If i slowplay he is just going to continue donking small unless he himself has a monster. It is rather hard to get value from this guy. And also, after he donks he almost never slows down (will continue to bet turn and river 90% of the time, usually small though)
I will be playing this guy very often so I will appreciate some advice ♦ Thanks! Just need advice on how to exploit him heads up.
