I was invited to speak at Front Trends in Warsaw, Poland, so I travelled internationally to speak. The event gave me a free ticket, and I was paid 500 EUR to speak. My travel and accommodation was fully covered by the event. My employer did not pay my travel expenses, and I took unpaid time off to speak. It took me 3 weeks to prepare for my 25 minutes speaking slot, and I had a great time. I'm a man who has been speaking for 2 years. Also, This is the only conference (out of 12) that has paid me for my time.