In English, a "thumbs up" is a sign of approval, agreement. It can also mean "good job" or "okay" or "yes". In French, there is "coup de pouce" - giving someone a quick hand or a boost if you will. And what does this mean in relation to this photo? Let's see...how about, I hope this image can boost your message and if so, I give *that* a thumbs up. ;-D see what I did there? ;-P