Wash cucumbers, slice into ¼-inch rounds, and toss with salt. Let sit for 10-15 minutes.

Rinse cucumbers under cold water 2-3 times to remove excess salt. Drain and set aside.

In a mixing bowl, combine minced garlic, fish sauce, and sugar. Whisk until well mixed.

Add drained cucumber slices, shredded carrots, and optional chives to the marinade. Toss gently.

Garnish with sesame seeds and serve immediately or chill for 30 minutes before serving.