Spare me I'm mechanically illiterate, but..., How? Options

[Hym3n]

My brother drives his 03 Civic Si pretty hard and called me up tonight to say that he checked his oil level and said that it was just barely below the L-line, asking if I could help him. Being the dumbass that I am, I have no idea.

Do you just unscrew the cap on the top of the engine and begin to fill it up? I'd imagine you dump a pint into it, run the car for a few minutes, check the oil level, and proceed as necessary? What type of safety precautions should I take? Should I add oil while the car is running or off?

Thanks,
Brian

[Hym3n]

Thanks everyone! I'm sure it's in the manual but.. well.. this sounds so stupid--it was stolen. A few months ago his car was broken into and many of his personal belongings including CD player were taken from the car. The manual happened to be in a bag of his that was among things taken, as he had just gotten the car and was reading up on things.

Again, thanks everyone, I appreciate it.

-Brian