Personally... I kind of feel like it does. You could be 100% right about something but if you say it in a not too convincing way, you're toast.
The opposite is also true.
Most Helpful Guy
man eating sandwich0
Most Helpful Girl
I think so. If someone is coming off as rude or arrogant, then that can be pretty unappealing and cause people to not want to listen to his or her message.
Or if someone is naturally timid and speaks with uncertainty even though he or she has a lot of knowledge on a subject. Confidence helps a lot in engaging people and getting one's message across.0