Summoning all to the flag hoisting ceremony

What are the small things that others do makes you raise flags - green & red both. And I'm not talking about - empathy (green), rude (red) these are pretty obvious, I'm talking about the nuances or minute details that often goes unnoticed like- when someone keep on trying to include your introvert ahhh in a group conversation so u won't feel left out type shii.
I wanna know your experiences.