Watch what someone does right after you tell them no. That’s their real respect level.

The minute after a no is unusually revealing. Anybody can be pleasant while getting what they want, and the response to being refused shows whether they see you as a person with your own limits or as an obstacle: sulking, bargaining, telling other people, asking again in a softer voice. None of that is subtle once you are watching for it.

Say a clear no to something small this week and then pay attention instead of rushing to smooth it over. Notice who takes it easily. That reaction is better information about somebody than months of good behaviour before it.