SAY CHEESE!!!

Where does the saying “say cheese” come from when taking a photo?

It’s not true, but it’s a great story:

Well, that’s a pretty incredible story, Evilhanz, I even want it to be true. Anyway, I am not sure on the origins but “cheese” is probably said because it causes you to form a smile with your mouth even if it is not a true smile. Some other words like “pepsi” and “strawberry” have the same effect, it’s the long “e” sound at work.

I usually ask my kids to say ‘smelly socks’, because they find it mildly funny and will smile (‘smelly socks’ takes just long enough to say that I can anticipate the moment to fire the shutter too).

I think ShibbOleth’s answer is a good one. (I suspect that, if a single person is responsible for starting it, their name probably isn’t recorded anywhaere, but I may be wrong).

What do they say in other languages?
‘Fromage’ as a word doesn’t leave me smiling, much as I enjoy eating the stuff.

In Swedish it’s omelet (with the stress on the last syllable).