Da Vinci Smile - A sneaky grin like you just got away with telling a lie and

A sneaky grin like you just got away with telling a lie and know you're never getting caught.

He gave me the Da Vinci Smile after I said I did my homework.

My friend had the Da Vinci Smile when I told her I ate all the snacks.

I gave my little brother the Da Vinci Smile when I told him I passed the test.