2 (connect your robot to your computer via usb cable)
4 (in arduino ide, open pushbutton.ino)
5 (hit the upload button)
7 or go to the menu item tools, and down to serial monitor)
8 (in the bottom right, select "9600 baud")
9 (connect the breadboard and pushbutton as shown in "pushed.jpg")
10 (hit the upload button in the arduino ide)