Prepare Your Glass: Rim the glass with salt or sugar using a lime wedge.Mix the Margarita Base: In a shaker, combine tequila, orange liqueur, lime juice, and simple syrup. Add ice and shake for 10–15 seconds.Pour and Top with Beer: Strain the mixture into the prepared glass over ice. Slowly top with beer, pouring over the back of a spoon to maintain fizz. Gently stir.Garnish and Serve: Add a lime wedge or wheel. Optional: add fresh mint leaves. Serve immediately.