It is so much better to listen to what people say and do. It means that the person thinks that it is easy to either predict or see by your facial or body expressions what you are thinking or what you will do next. Think of poker players and how they hide their reactions to their cards.
This doesn't mean you can take vitamins or apply topical vitamin C and then bake safely in the sun, but you can help keep your skin healthy and supple by making sure you get enough of this antioxidant vitamin [source: Bouchez].
Vitamin C is one of the most powerful antioxidants in skin care. It helps slow down the aging process by preventing free radical damage. Long-term topical use has been clinically shown to regenerate collagen and improve the appearance of wrinkles. Vitamin C also lightens pigmentation and brightens over all skin tone.