If you think someone is about to faint, what should you do?

Having the person sit or lie down is the most appropriate response when you think someone is about to faint. This action helps prevent injury that could occur if they were to lose consciousness while standing or walking. Sitting or lying down can also promote blood flow to the brain, which may aid in preventing a fainting spell.

Encouraging the person to take deep breaths can be beneficial after they are safely seated or lying down, as it may help relieve anxiety or improve oxygen flow. Making them walk around is not advisable, as it can increase the risk of falling and injuring themselves. Providing water could be helpful if they're feeling dehydrated, but it is not the immediate priority; the focus should first be on their safety.