Ok, alot of this should be obvious to most people but it's something I've noticed and I find it disgusting... just thought I'd teach some people a little manners.

by the way, I didn't take the pictures, they're from google image search,I'm not in the habit of taking pictures of public restrooms.

Step 1: Urinal Etiquette(just for the Guys)

Try and get the biggest gap as humanly possible between you and the nearest occupied urinal. The safety or splash zone if you will:
I think my reasoning behind this is obvious

Step 2: Cubicles

If your going to use the cubicle for the obvious reason- for the love of God, that handle on the cistern is there for a reason, if not for yourself, for the nostrils of others flush the toilet.

Step 3: Sinks

Come on, your perents would have taught you this when you were small, yet it amazes me how many people don't wash there hands.
It's gross, you go to the toilet then walk out and touch the door, then people who have washed their hands touch the door and it defeats the purpose. Or worse yet in a bar, you drink, you use the toilet, don't wash your hands and stick your hand in a bowl of nuts or something ... wash your hands.