The commonness among the humans and monkeys are well documented. In this rare encounter a monkey which had been alone and out of its herds for couple of weeks was desperate to live life & socialize its own ways. So having got an opportunity to communicate with a human who is calm, it gorges on him before its senses takes over it and makes it to behave as it would have with another of its species. It quietly finishes its job till its satisfied and moves on.
The human in the video is none other than myself and the monkey was a special guest to our college who stayed for couple of weeks feeding on the delicacies of the college canteen and enjoying himself playing the dogs (pulling its tail) and with his human counterparts .