He comes by chance and sees you urging folks to sign up and spin the wheel of fortune. The 'kisses' prize at the end of the rung was what drew his eye. He struck the box. He believes they will kiss but is unaware that they are chocolate.

He then shuts his eyes and pouts his lips in anticipation of a kiss. You instruct him to apart his lips. He thinks you're bold, but misunderstanding. Like you said, he made a mouth-opening.

"Is this the French kiss of legend?" He thought to himself.