March 19, 2014, 4:31 PM — Here's how you can activate the voice assistant on the Galaxy Tab 3 tablet.
1. Double press the Home button.
2. You can speak your voice commands to the voice assistant.
The three Galaxy Tab 3’s all have the S Voice assistant included in their user interface, which allows you to retrieve different elements on your device with your voice alone.
Image credit: Android Pit
Additional resources for the Galaxy Tab 3
Samsung Galaxy Tab at Wikipedia
Samsung Galaxy Tab 3 User Reviews at Amazon (7-Inch Model)