"Do Nothing" is a very common technique within a lot of meditation traditions. It is a bit of an art, and might be more of an advanced technique for most practitioners, though some people naturally resonate with a 'Do Nothing' type of practice.
The Taoist pointer of Wu Wei might be one of the clearer pointers, but it's still something that can't really be known by the mind.
Here is Shinzen Young answering a question about "Do Nothing" technique within a mindfulness context, suggesting there are risks to exclusively using this technique without any guidance:
The Taoist pointer of Wu Wei might be one of the clearer pointers, but it's still something that can't really be known by the mind.
from http://en.wikipedia.org/wiki/Wu_wei
Wu wei (English, lit. non-doing) is an important concept in Taoism that literally means non-action or non-doing. In the Tao te Ching, Laozi explains that beings (or phenomena) that are wholly in harmony with the Tao behave in a completely natural, uncontrived way. As the planets revolve around the sun, they "do" this revolving, but without "doing" it. As trees grow, they simply grow without trying to grow. Thus knowing how and when to act is not knowledge in the sense that one would think, "now I should do this," but rather just doing it, doing the natural thing. The goal of spiritual practice for the human being is, according to Laozi, the attainment of this natural way of behaving.
Meanings:
Wu may be translated as not have or without; Wei may be translated as do, act, serve as, govern or effort. The literal meaning of wu wei is "without action", "without effort", or "without control", and is often included in the paradox wei wu wei: "action without action" or "effortless doing". The practice of wu wei and the efficacy of wei wu wei are fundamental tenets in Chinese thought and have been mostly emphasized by the Taoist school. One cannot actively pursue wu wei. It is more a mere observation of one's behavior after they have accepted themselves for who they are and release conscious control over their lives to the infinite Tao.
There is another less commonly referenced sense of wu wei; "action that does not involve struggle or excessive effort". In this instance, wu means "without" and Wei means "effort" (instinct?). The concept of "effortless action" is a part of Taoist Internal martial arts such as T'ai chi ch'uan, Baguazhang and Xing Yi. It follows that wu wei complies with the main feature and distinguishing characteristic of Taoism, that of being natural. To apply wu wei to any situation is to take natural action.
In Zen Calligraphy, wu wei has been represented as an ensō (circle); in China, the calligraphic inscriptions of the words wu wei themselves resonate with old Taoist stories.
Here is Shinzen Young answering a question about "Do Nothing" technique within a mindfulness context, suggesting there are risks to exclusively using this technique without any guidance: