i take notes on other players all the every chance i get, guess what? 98% of them have 1 word on them -idiot. i sometimes write super idiot. it has helped quite a few times. i always look at the country they r from, i need not say what countries , because u will quickly figure it out if u dont already know. i also write things like aggresive bluffer, bets pot every time in oh, good player, tricky, raises pre flop on an ace-anything, slow plays pocket aces( which can readily backfire), and the list goes on and on.