Prep the glass: Before squeezing out the juice from the limes, take one half and rub it along the outer rim of the glass. Then roll the outer rim of the glass in some of the salt.

Shake up the cocktail: Get out your cocktail shaker and add 5 to 6 cubes of ice to it. Then pour in the tequila, triple sec, and lime juice. Cover the shaker and shake it for about a minute. Then carefully pour the liquid into your glass.pouring the margarita into the glass

Garnish the margarita with a slice of lime, and enjoy immediately.