1. Scan your table and look at each player and make a note mentally what kind of player you think they are: Fish, Shark, Recreational, Tight, etc. then watch each player and set your notes.
2. Always pay attention to what is going on with each player at the table. How are they acting when in a big pot, are they drinking alcohol, what do they do after losing or win a large pot, etc.
3. Check your position when you enter a pot and think about what your opponent(s) are holding, pay attention and read the board.
4. Make sure you have the nuts in a large pot.