Cutting others off excessively. It’s normal when you’re in a large enough group for there to be some overlap, but some people do it constantly and are only interested in hearing themselves speak. Makes being around them impossible since I often have trouble speaking up anyways.

Edit: I took instantly to mean on first meeting them, so I may have interpreted the question wrong lol

Edit2: I also should’ve been a bit more careful with my words, as this kind of behavior can be attributed to an anxiety response and isn’t always done out of apathy. I really apologize if I offended anyone by overgeneralizing.