Pocketalk is very easy to use once you have the hang of it. On the Home screen, just choose your two languages (tap on language name to get a list of other languages to choose from). Once your two languages are chosen, then just use the two “talk buttons” or physical buttons just below. One person uses the button under their language and the other person uses the button under their language.
To operate, press and hold the button the entire time you are speaking. When finished, let go of the button and Pocketalk will provide the translation. Be sure to initially wait for the Pocketalk beep sound before speaking.