Use a large button (easier to find) ( white or a light bright color)
everyone covers their eyes except for the person hidding the button
when the hider says "go" all players search
the hider tells the players by name if they are close to the hidden button by saying you are warm, bringing up the heat or lowering it as they get closer or farther from the hiding place.
whoever finds the button gets to be the one that hides it for the next round
