If you are visiting a foreign country, and you don't speak the local language, instead of using mimics and gestures to communicate, you can just show the picture in the app HelpPic of what you want.
If the pictures bundled are not enough, you can add your own pictures to a custom library. Moreover, if there are too many pictures, you can favorite the ones you use the most, so it is easier to find them.

Produced in BEPiD PUCPR.