This document summarizes a Tweetcamp training session on using Twitter. It began as internal training for Mayo Clinic employees but was opened to others to share more widely. The goals were to help participants better understand social media using Twitter as an example, see applications for their work, and find their voice by connecting with interested communities. Assignments involved setting up Twitter accounts, following relevant accounts, and spending time each day listening, engaging, and tweeting. Case studies showed how Twitter can enable serendipitous connections and conversations. Guidelines were provided on building credibility through following, retweeting, responding to mentions and direct messages, and thanking helpful people.