스포츠픽: 10 Things I Wish I'd Known Earlier
http://cashybog300.unblog.fr/2019/09/23/nba%ec%a4%91%ea%b3%84-what-no-one-is-talking-about/
1. Know your issue. Study as a result of your presentation beforehand. Browse all around the topic, so that you are self-confident that you know a lot more than your viewers, even When you have spoken.