I proposed an idea to give a workshop at RubyConf AU in Melbourne, Australia, so I travelled domestically to speak. The event gave me a free ticket, and I was not paid to speak. The event assisted with part of my travel and accommodation. My employer did not pay my travel expenses, and I was working while speaking at the event. It took me 4 days to prepare for my 1 day speaking slot, and I had a great time. I'm a man who has been speaking for 3 years. This was a not for profit event.