mentally sexually harrassed by monekey

so here I was at the zoo with my husband, having a nice walk, looking at the animals when we reached the monkeys' cages. everybody was crowding at the baboons, feeding them and admiring their big red arses, but my attention was caught by this lonely macaque sleeping on a wooden plate.
while i was pitying him( oh, yes, it was a him) he woke up and...how shall i put it, he started touching himself while showing me his tongue on and off and staring right into my eyes. then happily he went back to sleep.