Yep, I've done it with candies and such to tease easy child. Took one of her candies and popped it in my mouth just when she turned around. When she went "HEY" (she actually doesn't mind sharing unless it's last one or two) I said I didn't take any and put it between my upper lip and gum (to the right of my right incisor, there's a small dip perfect for holding an item), showed under toungue, took a drink, then started chewing candy. She thought it was funny and wanted to know how I did it. Maybe shouldn't have shown her, in case she ever has to take pills she doesn't like to LOL.