Where are you?

This is a funny game that Craig and Louie play,
Craig will hide under a sheet and I say to Louie, where's Craig?! Now at this point Louie looks genuinely confused about where he might be, even if he hid in front of him, and goes nuts, sniffing round the room till he gets to the lump on the floor!
He then gets really pleased with himself and wagging his tail and pawing and sniffing at the lump, and Craig will jump out and Louie is besides himself with joy!
I know this is no masterpiece blip but it makes me laugh every time!