For DOM based trader, market markers. (ES/NQ)

Hey DOM traders,
Trying to get better at seeing what Market Makers are really doing on the ladder, not just the obvious big spoofs.
What specific things on the DOM make you suspect their positioning (like if they're getting stuck long/short) or what they're trying to achieve (like defending a level hard or trying to push price)?
Looking for the smaller, practical clues in the order flow, how orders refresh, or how price acts at levels that give you hints about the MMs.
Any simple tips on what you watch for? Thanks!