The rec who's chatting everyone up and having a great time will call you just to be social. He's not thinking about your range. He's thinking about the experience.

Why they do it

You've seen this guy. He's not there to fold. Folding ends the interaction and he doesn't want that. He'll call reasonable bets with weak hands just to stay in the hand and see what happens.

The adjustment

Don't bluff him. Ever. Just value bet everything and let him call you down with worse. Be friendly back - it keeps him comfortable and calling.

What it's worth

One extra value bet per orbit against this player that you would have checked back is real money over a four-hour session.