Take shot glasses and rub lemon juice around the rim. Dip the rim into sugar on a small plate. This gives a sweet and tangy first taste. Set glasses aside while you prepare the drink.

Cut fresh lemons in half. Use a juicer to extract juice. Strain it to remove seeds. Fresh lemon juice gives the best flavor and makes the drink bright and fresh.

Take a cocktail shaker. Add vodka, lemon juice and simple syrup. Fill the shaker with ice cubes. This helps chill the drink and balance the strong alcohol flavor.

Close the shaker tightly. Shake it for about 15 seconds. The mixture should become cold and slightly frothy. This step blends all flavors evenly for a smooth taste.

Pour the mixture carefully into prepared shot glasses. Use a strainer if needed. Fill each glass evenly. The drink should look clear and slightly chilled.

Add a small lemon slice on the rim. Serve immediately while cold. The drink tastes best fresh and chilled. Enjoy responsibly with friends or guests.