Here's a one-sided flyer that shows the basics of editing LocalWiki:
Here's a two-sided flyer with info on making maps and adding tags in addition to info on basic editing:
If you're not sure which one is best to give people, opt for the shorter one! Eyes easily glaze over.
If you've made your own versions of instructional handouts, please add them here! Maybe yours is better and then everyone will start using it! :)