What is poker tells?

A “poker tell” is any clue, habit, behavior or physical reaction, that gives other players more information about your poker hand. The following are tips and you can apply against novice or advanced players. Remember, in poker game there are many contradictions and exceptions to the rule. Also, experienced pros will give out false tells to fool players.

Watch the Eyes
This is why many pros wear sunglasses or visors/caps when playing poker; they know that the eyes rarely lie.

Facial Expression
Again, many pros try to disguise their entire face by wearing a cap and looking downward. This is to avoid the classic stare-down that poker pros are famous for. They may try to study your face for nervousness (detecting a weak hand), or even look for repetitive characteristics like a body "tic". You may have obvious unhappiness in your face when your hand is weak, and conversely, you may show a contrasting show of confidence when your hand is strong.

Weak is Strong/Strong is Weak
In its most simplistic form, this usually applies to novice players but frequently applies to pros as well. Basically, poker players like to be actors, and when they have a monster hand they tend to look disinterested. Repetitive Betting Patterns.

Betting habits
Usually the most revealing poker tells are based on the way a player habitually bets during particular situations. For example, maybe the player always checks when he has made the nuts, or a player may regularly fold after being re-raised.

Internet Poker Skill---Psychology

Psychology plays an incredibly important part in Internet poker which means that poker and psychology can’t be separated…A good poker player is not a self-centered player. He may be the biggest SOB you know. He may not care about anyone but himself, and he may enjoy stealing food from the poor. However, when a poker pro walks into a poker room, he always empathizes with his opponents. He tries to think what they think and understand the decisions they make and why they make them. The poker pro always tries to have an answer to these questions:

1. What does my opponent have?
2. What does my opponent think I have?
3. What does my opponent think I think he has?

Knowing the answer to these questions is the first step, manipulating the answers is the second and more important step. Suppose that you have a pair of kings and your opponent has a pair of aces. If you both know what the other has, and you both know that you know what the other has, then why play a game of poker? A poker pro manipulates the answers to questions #2 and #3 by slowplaying, fastplaying, and bluffing in order to throw his opponent off.

Good poker players know that psychology is much more important in a no-limit game than in a limit game. Limit games often turn into math battles, while no-limit games carry a strong psychology component. Thus, poker tells are much more important in no-limit games.