Finely chop the greens and add them to the salad. Add salt and pepper, preferably freshly ground pepper, to taste. Then mix everything carefully and easily with your hands. In a small jar, pour the oil and juice, tightly screw the lid and shake vigorously for 10 seconds. You will get such a wonderful sauce-emulsion.
Lightly sprinkle the resulting emulsion on the salad and mix it very easily and gently.