Prepare your glasses by rubbing a lime slice around the rim.
Dip into salt, coating evenly.
Fill a cocktail shaker halfway with ice cubes.
Add tequila, lime juice, orange liqueur, and simple syrup.
Shake the mixture well until chilled, about 15 seconds.
You want the flavors to mix nicely.
Strain the margarita into the prepared glass.
Add a few ice cubes if desired to keep it extra cold.
Garnish with a lime slice on the rim of the glass.
Serve immediately to enjoy the full flavors.