inhibitions - A feeling of self-consciousness or restraint that prevents someone from acting freely; a psychological or social barrier that limits a person’s behavior or expressions.

His inhibitions kept him from speaking up during the meeting, even though he had great ideas.
scintillating - Describing someone or something that is exceptionally witty and entertaining, and is intellectually or emotinally stimulating.

Her scintillating conversation captivated those she talked to at the dinner party, leaving them laughing and enjoying themseles.