Stranger #6

Our sixth stranger was called Peter, he worked at this fabulous place.
As he was the 6th stranger of the day, we were still quite nervous about asking and unsure of what to say first.
I would say, 'Excuse me, hi, can I take your picture?'
After a moment of confusion, I would explain what we were doing. If they said no, then I would put my camera in my pocket and apologise for bothering them.