It happens when i want to add to a conversation, but my words aren't coming out, and i just get stuck.
It makes me not want to contribute sometimes, because of how it'll sound like.
I got laughed at from a female today, which wasn't fun, her friend excused her, as she saw how it looked mean.
I stopped communication for a bit, it is embarrassing, but mainly happens when i am speaking in Polish, and rarely in English.
P.S. i was quite tired today, and drank 1 bottle of beer, not sure if that made it worse.
It makes me look nervous, and lack confidence, which really sucks with a first impression.