What does it mean when a man touches a woman's upper arm?

Anonymous
Me and my friends went to meet a man and we each gave the man a hug during the greeting. I noticed that as I was hugging the man, the backs of our hands brushed against each other. I found this rather odd.

We then took pictures with the man one by one. I then noticed that as I was having my picture taken with him, he had the palm of his right hand on my right upper arm with a huge smile on his face.

He did not do this when he was taking pictures with the others.

What could it mean?
What does it mean when a man touches a woman's upper arm?
12 Opinion