neck tickling!

If you are sat down..but make sure its sat down or major awkwardness :S, if your watching something on t.v..slowly start to tickle the back of there neck..this gives them a tingle, meaning "turn on" when you notice that he really likes it, an he starts to go really still watching the screen..stop! An he will turn an look at you..meaning you know he liked it, he is turned on an you,ve got eye contact..:D