I proposed an idea to speak at JSConfEU in Berlin, so I travelled internationally to speak. The event gave me a free ticket, and I was not paid to speak. My travel and accommodation was fully covered by the event. My employer paid all of my travel expenses, and I was working while speaking at the event. My speaking slot was 25 minutes for this event, and I had a great time. I'm a person who has been speaking for 3 years. This was a not for profit event. Also, I traveled with my spouse and daughter. The organizers had no problem getting a room suitable for the three of us. There was child care at the event but my spouse and daughter preferred to go and visit Berlin.