Kiosk mode is a simple and easy-to-understand way for volunteers to check in and out of your events. That being said, it is always beneficial to include a sign next to your iPad, tablet, or desktop to remind volunteers to utilize the Kiosk.
We at Civic Champs have created a PDF of such a reminder sign. You will find it attached to this article. Feel free to print and use this document, or use it as a reference for creating your own organization-specific sign!