The first step is to add a kiosk to your account. Complete the creating a Kiosk tour by selecting the blue 'Launch your account' from your trial account or see the Adding a Sign In/Out Kiosk Helpdesk article.
Once you have created a kiosk, if it is a PC or Windows Kiosk, you will need to go to the login via the browser using your Kiosk credentials - https://login.whosonlocation.com
If it is an iPad Kiosk, you will need to log in with your Kiosk credentials into the WolKiosk app.
Have a look at the Helpdesk article Enabling Your Sign In/Out Kiosk article for more information.