What is the Japanese term for putting an arm around another's shoulder? it is kind of hard, at first I am thinking of 抱きしめる but I think it is more about embracing someone (tightly).
Thank you for the responds
Most commonly, we would say:
I actually could not think of another phrase.
In addition to @l'électeur's answer, we also commonly say 肩【かた】を組【く】む when two or more people put their arms on one another's shoulders.