Please wear athletic shoes because you will be actively participating as base runners, infielders, etc. throughout the session. Also, bring a glove if you have one. 

At the end of the session, I will show everybody the game-time equipment and process to use before, during and after each game you officiate.

Even if you are an experienced ump, I suggest you still attend this session to possibly learn new techniques or rules and to meet your fellow Hillside umps, some of whom you may be working with during a game.