1) Select a Contact from your phone by telling the name .
2) Type a message by your voice
3) You can edit the message before Confirm by typing
4) Send the message by telling Confirm
5) You can select your language of your ascent like Indian-English ,UK-English.
Things to note
1) wifi or gprs or 3G should be enabled for voice recognition
2) Select language from settings according to your ascent.if you are from UK,select UK-English
3) By default language is US-English
4) Click the mic button ,if your voice assistant(girl) is not responding