First of all, this is only for individuals who are 21 years of age or older. Shotgunning is a fun way to begin a party or tailgate with your friends. It's an easy way to get everyone involved. I advise to not perform this act too many times during the festivities so you will be able to enjoy yourself. Don't drink and drive.
Step 1: Grab a Beer
The first step is to grab a beer of your choice. Make sure the beer is in an aluminum can.
Step 2: Using the Right Tools
The next step is obtaining an object that will be used to puncture the whole in the can. There are multiple options, but I believe keys are the safest and easiest to obtain. Most people already have keys in their pockets which also makes it easier
Step 3: Puncturing the Can
Place the beer in your hand. Have the push tab facing you and facing down. Also, tilt the beer slightly so the part of the can facing you is downward. (Look at the image for this step for an example). Having the beer at this angle will cause an air bubble at the bottom of the can (or the opposite side of the push tab). With your thumb press down on the can to make sure you find the bubble. Take your key and push down on that spot. Add more pressure until the beer can is punctured.
Step 4: Maintenance
Once the can has been punctured there is some maintenance needed. Place your key in the punctured whole. Start making a circle motion so the whole will get larger. I usually like to keep the whole at the size of a quarter. Make sure the edges of the whole are bent inward so you do not cut your yourself.
Step 5: Enjoy!
Hold your beer about chest level. Place your mouth on the whole of the can. You should be slightly bent over at this point. Place your off hand on the push tab and get ready to open it. (It's fun with a lot of people to have a countdown). Here comes the tricky part. When you're ready to drink you must open the tab and stand completely upright at the same time. Also the can must be up and down so the beer doesn't spill out. Once the beer is gone you can celebrate with your fellow shotgunners!