A Buddhist is one who has taken at least the Refuge Vows and is practising the Refuge Commitments. The Refuge Vows consist of avoiding the Ten Non-Virtuous Actions: 3 of the body (killing, stealing and sexual misconduct), 4 of the speech (lying, divisive speech, harsh words, and idle chatter) and 3 of the mind (covetousness, hatred & malice and wrong views). There are also 12 refuge commitments.
The Five Precepts, also called the Lay Vows can be taken after taking the Refuge vows. The Five Precepts can be refined into the Eight Precepts. These are: (1) abstaining from killing, (2) from stealing, (3) from sexual misconduct, (4) from lying, (5) from the use of intoxicants, (6) from eating after midday, (7) from dancing, singing, music, and use of perfume, cosmetics and adornment etc, (
from the use of luxurious beds and chairs.
The Five Precepts can be taken all at once or any one of the precepts can be taken individually. The precepts can be taken for life or for a certain period of time. The precepts, if taken fully are referred to as the lay ordination or the genyen ordination in Tibetan. It is a formal ordination and the precepts cannot be transgressed.