"nice boy" is an action someone does when you tell them they have something on the back of his shoes... they stand with the toes to the ground and heel in the air and sometimes pull their trouser leg up or swing there arms to the top of their head looking backwards towards their shoe trying to see whats on the back of it.....when you try this make sure knowone is in the room or theyll look at you with a bewilderd face.............
michael (dennybairn)"hey michael you've got something on the back of your shoe by the way"
michael mcd ,"whit wan"(turning round and standing like a right poof he examines his shoe)
michael (dennybairn) shouts,"ahhh!!!!!nice boy!!!!!"
michael mcd (turns around bemused at this higher inteligence that michael (dennybairn) has and hobbles back to his desk muttering unknown words "eh fok eh basterd rr grumble"