There is a ride in the Olympic village where you are in cage held up by bungee cord. The cage hangs about 10 stories in the air. Once you're in the cage, a machine pulls the cage down to the ground, then lets go, catapulting you higher than some of the buildings. Every kid for miles around gravitated to this ride. And every mom was right behind, giving the universal look that can decalcify the spinal columns of children.
Pin trading is a big deal at the Olympics.
Kids and adults alike trade the pins off their hats and shirts. No language is needed. You point at the one of theirs you want, and they do the same to you. They wanted my Star Trek pin. Trekkies really do come from all countries.