SOPP520: How to get young kids to be more excited during organ demonstrations?

A few weeks ago was quite a difficult trip to Vabalninkas for me to demonstrate pipe organ to bunch of 8th graders and 9th graders. And from that trip the most difficult thing was to get them to play this 19th century organ. They were very shy. Too shy, I should say… So, Ausra, this is my question. Right? How to get young kids to be more excited during such events and willing to try things that maybe are difficult for them, or overcome their fear of other teenagers, their friends.