The last of my staff got their second Moderna shot. Come 1 June, I'm going to encourage, but not require, customers to wear a mask. Employees have the option to not wear one a work.
I'm not going to be "checking papers" at the door, so no verifying customer's vaccination status. With that being said, the folk who have come into my place of business sans mask are also, in my observation, the sort who are least likely to be fully vaccinated. So I'll probably continue to wear one at work.