One of our favorite little "bistro cafes" has a fella' wander around ,playing the accordion , and singing. One of my favorite things to do, if I see someone I know eating in there, is to call the "singer" over and say.."See that gal (or guy) over there/ it's their birthday today !"....and then sit back and watch the show !! He plays "Happy Birthday", sings, yodels, and If it's a gal, he'll try to get them up to dance......
..Arlyn