Fill a cocktail shaker halfway with ice. Add pear slices and muddle gently to release juices.
Add pear vodka, simple syrup, and lemon juice. Shake 10–15 seconds until well chilled.
Strain into a chilled glass over fresh ice. Top with club soda and give a brief stir.
Garnish with a pear slice or mint and serve immediately.
Notes
Taste and adjust balance: add a touch more simple syrup if too tart, or extra lemon if too sweet. Use ripe pears for the best aroma. For a lighter version, reduce vodka to 1.5 oz and increase club soda.