Fill your cocktail shaker almost to the top with ice.
Add 2 oz of Watermelon pucker to your shaker. Do this by measuring it out with your jigger.
Add 1 oz of Crown Royal to your shaker. Do this by measuring it out with your jigger.
Add 4 oz of Red Bull to your shaker. Do this by measuring it out with your jigger.
Carefully mix everything up by placing the lid on your shaker and shaking it for about 15 or so seconds.note: don't shake too vigorously or the red bull will fizz up. Take the lid off of your shaker. Place the hawthorne strainer over the top of the shaker.
Pour your shots from your shaker into your shot glasses.