If it is good-natured and he does it lightly, it is probably a way of expressing friendship with you, the way guys might do that with each other. If there was even the slightest negative aggressive energy, then I would be very careful around this guy; in fact I would avoid him.
She's trying to get your attention man! It may be the only indication you even get that she wants to get to know you better, best not ignore her.
they are sexually deprived
hand/arm
A man scratches his head or taps his head when he is confused.
She likes his muscles.
The Romans
The Fist
Neil Armstrong.
A.L.L.A.H.=Arm, Leg, Leg, Arm, Head. The 5 Percent Nation believe that man is God.
the man with golden arm is Shane warne
john wastes was the fist man on venus in 1986
Not mine, but an average man's fist.