Q&A for How to Take a Quick Shower (for Guys)

You could just use cold water. If your shower is fast enough though, you won't waste a lot of water.

Because those are the places that get the most dirty. Your groin gets sweaty, and your hair can get greasy and smelly. Your face catches dirt and dust and can affect your appearance. Obviously you should wash everything if you have the time.

It depends on your hair and whatever conditioner you feel works best for you.

No, be gentle. Rubbing too hard can cause irritation. Be gentle when washing, always.

Start with the head and work down. The soap will flow down as you go. Scrub your feet last.

Yes, although girls may prefer to take more time.