The Siri Dictation feature allows you to update your Facebook status or comment on the photos of our friends using voice commands. Instead of typing on the virtual keyboad of your iPhone5S, simply press on theo Microphone and dictate what you wnat to be published.
To use the Dictation feature, we must first activate Siri:
Go to Settings> General> Siri.
Enable Siri.
Update your status and post comment on Facebook: