How do you position a person's body after fainting?

When a person faints, they remain unconcious. The persons fainting can be unknown so placing them in certain positions such as on their side will prevent choking in the person vomits. Also, bringing the person legs to their chest can allow easier blood flow through the heart, allowing oxygen to flow throughout the body better and faster. Sometimes, laying the person flat is recommended because the head and heart remain at the same level.