I think you have to raise him to ~$5 or $6. Smoothcalling probably isn't the best idea since you're OOP and that puts you in a tough spot on the turn, e.g. do you bet out or check, if you check he might check behind you. It's not unreasonable that he has something like 76, 86, or 65 suited, I would raise him here and pray for a re-raise, if he calls bet 2/3-pot on the turn, if he folds just take the pot and be happy.