i also sometime feel i want to talk to but i go blank too like i do not want that too. i cant speak about humour its completely dry and may be my introvert nature does not mind being left out but i keep balance between my space and social space few times a day little bit of hi and hello interaction helps me not too much of it .. why dont you find yourself things to do which brings you peace i am person who can eat alone watch movie alone i just make my personal space more engaging than what my social space is so i never feel like being not needed or left out i know i have more interesting thing to do like coming here and sharing my stuff is peace which i wont be able to do in social space because people are not in the same mental state to understand that so i would definitely not mind that i am not with them right now sipping coffee because even if i was i might still feel disconnected