Which adjectives would you use to describe a kid who, when the parent asks him to clean the room, he just hides the dirty stuff in the closet. When parent asks him to help carry a shopping bag, he always pick the lightest bag.... who fakes a sickness not to go to school(, or maybe does something (like eating something he wasn’t supposed to eat) and blames it on someone else, for example. Or if a kid asks her/his mother to order pizza because "her/his brother is hungry", when in fact the kid is the one who wants pizza. Could I say "she/he is so sneaky" or maybe "slick"? What about tricky, crafty or sly? Which one of them could you use? What if I was talking about an adult or teenager?