I agree and would add others along the lines of . . . - a hobby-skill (playing piano, ping-pong, billiards, surfing) - playing a team sport - telling a joke

I agree and would add others along the lines of . . . - a hobby-skill (playing piano, ping-pong, billiards, surfing) - playing a team sport - telling a joke - defending one's self / fighting / disarming with humor All the above designed to build confidence.