Like the previous tutorial, this tutorial assumes that you have sandia_hand_node and simple_grasp.py up and running in their own terminals.
Now, get a new terminal and, as usual, source ~/sandia-hand-ws/devel/setup.bash .
Then,
rosrun sandia_hand_teleop asl_gui.py
This will pop up a gigantic text box. Type something in there (for example, "hi") and hit [ENTER]. The hand will slowly spell out the letters and then return to the home position.