a friend of mine who is pilot for a big big airline placed a letter in the captain box in the dispatch telling him that a friendpilot(me) would like to visit the cockpit during his next flight .
half way of the flight in a B373-500 the copilot came to me and asked me to follow him. I saw the capt, we chat a little and then he left his seat I took his place.I continued to chat with the copi who was very friendly. we talk about INS, and radio systems...
20 minutes later, captain came back, and I sit on the jumps seat for the rest of the flight.I had lot of fun. thank you guys!
(I will not tell you what is the airline who let me the captain seat, but a request letter was given to the dispatch for me)