Playing the opponents hand and not yours.

[winky51]

I play live mostly.

LIVE TOURNAMENTS I analyze the following.
The player type
Their position
How fast they took to raise
How did they handle their chips
Their PF raise amount
Their reaction to my call.
Their flop bet, how long they took to bet
Their reaction to my call.
Their turn action

ONLINE TOURNAMENTS I analyze the following.
The player type
Their position
How fast they took to raise
Their PF raise amount
Their flop bet, how long they took to bet
Their turn action

As you can see a lot less info.