After Machu Picchu, my favorite part of my trip to Peru was feeding a wild monkey. She came right up out of the jungle and took a banana out of my hand. Then she climbed aboard our boat.
Her male counterpart was a bit more shy and would only accept tossed bananas that didn’t require him to come out of the jungle and down by the shore of the river. He always had some part of him, usually his tail, attached to a tree.