Two short walkthroughs, depending on how much you want to see:

• Print the Sample Club Card - the fastest path: it comes installed with the app, so just fill it in and print it. No editing, no download.
• Customize and Print a Project from the Library - a more realistic path: find a project close to what you need, download it, put your own logo and business name on it, then print.

Either way, everything happens inside the Yatate app - there's no account, no server, and (past the one-time download for the second walkthrough) no internet connection needed.