I'm totally with, Mo. I've called and played at the same time for many years but if you're going to do this then you need to keep it as simple as possible. Youngsters do not take kindly to standing around while you explain something complicated. On the other hand they will pick things up far quicker than adults. Swedish Masquerade. Pat-a-cake Polka

Hokey Cokey a must and similar. Wind the bobbin. Blaydon. They might pick up bridge of Athlone with a little help.

The older ones will cope with all the old favourites and may even know some of the movements. I'd avoid Waves of Torry and Drops of Brandy unless you've got a few to demonstarte who are familiar with the movements.