[anatta]

I call down. I hope either the board pairs low or he is an unknown making a move or an unknown who is a bad player who overplays his hands.

As far as raising if it pairs low, I think your typical player has QQ, JJ or 88 a great deal here and will three-bet you with a full house and finding that river fold should be easy but against an unknown...If he is raising QJ UTG you probably have to consider T9 too. So I just call if it pairs low (another reason is that he should read you for overpair and might not bet QJ or call the raise if it does pair - many players would bet and call the raise with that hand, but some wouldn't so just another argument for calling the river when it pairs...).