I was intrigued by this question as I wonder how people react when they "bump" into someone famous?
When in Buenos Aires, my wife and I went into an ice cream parlour to get some takeaway, as one does in BA, and the only other customer was Bernardo Neustadt, (
http://www.bernardoneustadt.org), a very well known political commentator, who had both a morning radio programme and an evening TV programme. He was easily recognisable, but we decided he was just another customer and apart from nodding to him, as a way of saying hallo, we ignored him. As his order hadn't arrived, he wandered out onto the pavement where a young lad cycled up and asked for his autograph, which he was very pleased to give.
My wife claimed we should have engaged him in conversation, but since we would probably never see him again, I thought politely acknowledging his presence was sufficient. The same as I would do to anyone.
On another celebrity, maybe someone can suggest a reason for the following:
I was on a flight from New Jersey to Miami and sat next to someone who turned out to be Eddie Murphy's manager. Eddie Murphy was sitting behind me on the window seat on the other side of the aisle.
A colleague of mine was sitting right up the front near the toilets.
During the flight, Murphy got up to go to the toilet and my colleague says that he wore black leather gloves. The thing is that he went into the toilet with the gloves on and came out with them on.
Why could that be?
When they got off, Murphy, who is quite tall, was surrounded by his mananger and 3 body guards, and the 5 of them, with Murphy in the middle, marched through the airport giving no-one any chance to get near.
Hollywood I suppose.