I proposed an idea to give a workshop at Dutch PHP Conference in Amsterdam, so I travelled internationally 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 paid some of my travel expenses, and I was working while speaking at the event. It took me 3 weeks to prepare for my 5 hours speaking slot, and I had a mostly good time. I'm a man who has been speaking for 1 year. This was a not for profit event.