I'm playing a lot of 45 man sit and gos and I make notes all the time on players, even if I'm not playing the hand (if that's the case I like to point that in the note too because a villain can play different against other players) I love to see a lobby full of players with my labels I feel more confident to play when I know what moves they are making
Some reg players I don't even need to make notes, because I see them all the time at the tables so just by reading the nickname I regonize them sometimes
Notes are crucial for the game. Just imagine, someone opens from UTG. Usually a sign for a very strong hand. Now you have notes, that he has done this before with weak aces, suited connectors, small pairs or even worse and you sit behind him with a hand like AT or something. Will you play your hand?
You know, yes, I do the appropriate color markings that an online site allows. Each color I have indicates the corresponding style of my opponent's play at the table. Usually green is a fish, and red is a good player, and so on.
Taking note on other players is one of the best thing you can do in the long run, there are so many players its hard to keep track of how some play without note.
Many different sites with statistics to help and analyze the player.sharkscope .Marking by color should be mandatory and watch the game of your opponents,the color of the marker will not always be right)
Of course, it is super important to have data on the opponents, there are all kinds and being able to have some reference of unusual movements is super important to make decisions. Also, I think that using the HUD is vital if you want to be a multi-table winner, without information is like playing blindfolded.
Do you pay attention to the people you're playing against? Like if you've played against them before do you notice that you're playing against them again or does it not make a difference to you?
My tables seem like a carnival of colors, well, if I take note of the players. I also put a color to identify them
some names of animals. I saw that from Phil Helmut.
At the start of the tournament I am aware of who is winning the best hands and what cards they win with. And as it progresses I am taking a greater reference of some very specific players