Wash and dry greens.

Prepare dressing in a mixing bowl. Add vinegar, sugar, salt, and pepper. Taste to make sure vinegar and sugar is balanced (to your liking).

Whisk until sugar and salt dissolved.

Slowly using one hand to pour the olive oil into the mixture, use the other hand to whisk in the olive oil.

Pour some vinaigrette over mix greens and toss gently with both hands, careful not to over dress mix greens.

Note: Salad can be served with a piece of chicken breast, salmon, gravlux, turkey breast, etc, to make it a full meal for health conscious people.