Oh dear, someone is up to no good. That smile is just so revealing.

On International Smile Day we invite you to take your best shot for the theme #ACertainSmile and to share in the Flickr Friday group! We will feature our favorite photos from submissions you share in the Flickr Friday group pool in the Flickr Blog next week.

www.flickr.com/groups/flickrfriday

Photo by Jake Stimpson (flic.kr/p/tnLTXX)