my scary, scary face

I realized that I don't have the friendliest face in the world, but what happened today still amused me ;
I was just standing and waiting for my iced coffee, when the barista called out my order, I smiled, and said "thanks!".
But then he said "Oh thank God you're smiling, cause you just standing there looking unhappy.." with a relieved face expression
hehe..
is my face really that scary without a smile?hmm, maybe I should smile more often :)

(p.s. I was meant to put a photo of it clown, to represent the scary face, but I was too scared! that clown haunted my childhood..)