01 - Wash the lemon thoroughly and slice it into rounds or wedges.
02 - Place ice cubes into two glasses.
03 - Distribute several lemon slices evenly between the glasses.
04 - Pour cold water over the ice and lemon slices in each glass.
05 - Optionally add honey or agave syrup to taste and stir gently until dissolved.
06 - Decorate with fresh mint leaves if desired and serve immediately.