Once your Moto X is trained you can use several different voice commands.
It is not necessary to pause after saying the launch phrase (OK, Google Now). Simply put everything together into a single phrase and Touchless Control will process the command.
For the command examples below, you can replace the contents in ” ” for your needs.
Call “contact” ——-> Make a phone call
Navigate to “location” ————> Get directions
Text “contact” ——–> Send a message
Remember “meeting at 1” ———> Set reminders
Schedule “an appointment for Friday at noon” ——>Schedule meetings
Play “title” ——–> Play music & movies
Set “alarm for 6 in the morning on Tuesday” ———> Set alarms
Open “calendar app” ———-> Opens application
Post to Google + “blah blah…” ———-> Post Google+ update
More Google Now commands can be found here: https://support.google.com/websearch/answer/2842392?rd=1
You can also launch voice commands from home screen as shown below.