What does it mean when a guy interlocks his hand with yours?

I've been out of the dating game for some time, but started seeing this guy.

Went to the movies for date #2 and 1/4 of the way in I felt his hand next to my thigh. Accepted and gave him my hand. He started playing with my fingers and rubbing my skin and eventually interlocked with my hand.

Am I reading into this or is this normal for guys to do?
What does it mean when a guy interlocks his hand with yours?
Post Opinion