If you are at a location such as a library that has computers available for public use or any other situation where you do not own the personal device, do not use Keep me signed in when signing into your Amazon Games iD. Leaving your account signed in on public devices allows unauthorised users to access your account and risks compromising your account.
We recommend against using the Trusted Browser and App setting on public devices as well for the same reasons.
If you do use a public device, ensure that you click Sign Out when you've finished.