Place a thin Persian cucumber horizontally between two chopsticks (this will help prevent slicing all the way through. Starting at on site, slice your knife perpendicularly (at a 90 degree angle) along the cucumber at 1/4 inch intervals, almost all the way down. Once you get all the way across, flip the cucumber over to the uncut side and repeat the slicing process, but cut at a 45 degree angle instead of perpendicularly.