How do I login as Guest user from the username and password prompt?
I want to display the login window as name and password prompt (rather than list of users) for security. (See System Preferences > Login Options > "Display login window as".) However, I want to be able to offer friends use of the Guest user account, too. I've tried logging in using username "Guest"/"guest" and leaving password blank, but it doesn't work. What do I enter at that prompt to login as guest?
Answers to a similar question I found about what password to use for the guest account didn't actually answer that question. Rather, the solution was to disable and re-enable the guest account to get it to stop asking for password. That doesn't help in this case.
MacBook Pro (15-inch Mid 2012), macOS Sierra (10.12.6)