M
MakeUcryalot
Rock Star
Silver Level
When I play online I usually try to categorize players based on things like what ranges they call, tendency to bet with air and try to get a feel for their all-in equity. That being said, the only really reliable tell for online besides being a predator is making sense of an opponents story. If a villain check-calls a bet on a KcTc9c board, checks the 8d turn and min raises the 2h on the river then their usually trying to steal dead money. You need to follow the story preflop all the way to the river to get a grasp on the cards they are (or aren't) holding.