Using a pair of chopsticks or two even sticks to hold the cucumber into place, use a sharp knife and make small cuts at a 45 degree angle over chopsticks, making sure to not cut all the way through. Flip and make slices perpendicular to the first set of cuts. Try to make as many as possible along the cucumber!
Mix with salt and let rest for 5-10 minutes. Remove excess water and rinse off the salt and drain. Pat dry with a paper towel to remove excess moisture.
To make the dressing, mix rice vinegar, sugar, minced garlic, chili oil, soy sauce, scallions, and sesame oil in a bowl. (Chopped red chilis are optional.)
Place sliced cucumbers in a bowl in circular fashion and pour the dressing - make sure it gets within the cuts. Enjoy!