The $2/$5 player who knows everyone at the table by name and is joking around constantly is more dangerous than he looks. He's comfortable, he's been here before, and he's not going to make big mistakes.

Why they do it

Familiarity at the table is a skill. Players who are socially comfortable play better poker - they're not nervous, they're reading the table well, and they're not going to tilt. Don't underestimate the friendly guy just because he seems relaxed.

The adjustment

Play straightforward against him. Don't try to get fancy. He's seen all the moves before. Beat him with fundamentals.

What it's worth

Trying to outplay the friendly experienced reg with elaborate bluffs is how you donate chips to someone who was already beating you. Keep it simple.