This one is unfortunately quite common: "You look unhappy. You must be expecting me to do something, and now [ I'm frustrated because I don't know what you wa

This one is unfortunately quite common: "You look unhappy. You must be expecting me to do something, and now [ I'm frustrated because I don't know what you want from me | I'm anxious about meeting the possible expectations I imagine you might have ]." If someone looks unhappy, it might not be because of you. Even if they do have a need that you could meet, they might not expect you to meet it. Instead of guessing, you could simply gently ask.