If you click on the settings icon you will have a link to Mobile Hotspot and Tethering (or similar). Touching that should bring up a screen allowing you to turn on the hotspot. When you do you will be shown the Network Name (SSID) and a password as well as some instructions. Keep your phone plugged in as this will eat the battery while running as a hotspot.
You now go to your computer and connect to the network shown (usually Verizon-XX-xxxxxx) and enter the password shown on your phone. Click connect and you will be surfing the internet using your phones internet connection.