Right awareness means not only awareness - because awareness can become a strain - right awareness means awareness without any strain, relaxed. One can try to be aware but can create tension on the way, and that tension will destroy the whole work. So these two things have to be remembered: awareness with no strain, with no tension.
Awareness is a flowering of relaxation. Wherever you feel any tension in the body, relax that part. If your whole body is relaxed, your awareness will grow faster. Just watch, just see, make no effort, do not strive; an effortless awareness. In the beginning it looks very paradoxical - effortlessness and awareness - but once you start working on it, slowly slowly the knack is learned. It is a knack. And once you have learned the knack, once you have known even a single moment of awareness without tension, you are on the right track; you will never be the same person again.
Just relax and let things be as they are. A very very passive awareness - that is the meaning of meditation. If sometimes you forget watching, perfectly good! When you remember, you watch again. When you forget, you forget. This is relaxation, this is accepting life as it comes. Then great joy arises out of it. You are never tired and you are never distracted because nothing can distract you.