HS Debate cured both my "umming" habit and my relucance to speak in about a weekend. A game we played in debate was where a person had to talk about something

HS Debate cured both my "umming" habit and my relucance to speak in about a weekend. A game we played in debate was where a person had to talk about something in front of a group without saying any "ums". If you said "um", your friends got to throw soft items (wadded up paper, plush toys) at you. It cures "umming" in seconds.