A few years ago when I first started playing at a casino, the guy next to me hands started visibly shaking. He wasn't a very good player and I didn't know the shaking tell. I had AA and was doing my best to cap the preflop betting, but all I could get were 2 bets into the pot. The flop comes A66 and I have made aces full. Now I am able to cap every bet. I figure he has 2 pair and things he is golden, or maybe A6 and has 6s full. But I did notice this guys hands were shaking each time he threw a bet in. He was a rookie player who just stepped in from the blackjack
table, so I figure he was just afraid and maybe was trying to bluff me, but I had a made hand so I was OK. Well as it turns out, he flopped quads. Later I read about this tell, and believe me I never forgot it. You would have think this guy won the Lotto as much as it affected him. Crazy
A few weeks ago I was at a Brick and Mortar casino in Australia
and playing with a few of their football players. A lot of friendly loose action and I watched the guy across from me call blind. A few others limped in and when the flop came, the board paired and the guy across from me looked at his cards bordering on the verge of depression. I saw as he picked them up, he looked, did a double look, and was so startled he literally stumbled off his chair and move all his chips in.
His friends all called, but I was out of there, remember the guy with the quads. Sure enough, he had flopped a full boat and was overly excited.
Its amazing how a good hand can really affect some people. But I have to assume once you have a decent amount of experience this tell goes away.