Obvious Tell

As far as twitches went, it was very mild, just a slight twitch of the left eye, the bottom lid flicking up and down a little.

But when you want to play poker with serious players, that sort of thing seems like an obvious handicap.

At first, it earned him money by players assuming it must be a tell that he was bluffing, and paying the price for calling him.

Then people assumed it was a tell he was good, and would fold automatically.

Soon, people equated it with him about to win the hand.

That made him plenty rich.