The tight reg who suddenly starts talking a lot at the table after being quiet is holding a strong hand. People get chatty when they're comfortable. He's comfortable because he has it.

Why they do it

Live tells at $1/$2 are rarely about physical movement. They're about behavioral shifts. A quiet reg who starts engaging the table while a hand is in progress is relaxed - and he's relaxed because his hand is strong. Pay attention to the pattern over a session before you use it, but once you confirm it, it's gold.

The adjustment

When the quiet reg goes chatty mid-hand, slow down. Give his bets more credit. This is not the spot for a hero call.

What it's worth

One correct laydown based on a confirmed behavioral tell saves you a stack. These reads take time to develop but once they're locked in they pay every session.