Pick a spot on the wall. Don't look away.
Make sure to stand as far away from the edge of the urinal as possible to get as much spittle on the ground around the urinal as you can to make sure the janitor has something to do and so that people get to step in your piss.
Talking is hit and miss. Strangers, almost always no, but if it's a bro it's cool. If other people are having a conversation, it's easier to get away with joining in than it is to start one.
If you being slapped and yelled at, you are not in fact using a mens urinal but the sink in the womens restroom. Contrary to popular belief, this is frowned upon.
Ignore the glory hole.
Do not, under any circumstances, use a toilet stall to take a piss. If someone shits their pants waiting on you when there was an open urinal, you'll deserve whatever you get.
All in all, men's public restrooms are terrible and no one should use them except in a dire emergency.
I think the reason women take so long is that each one of them takes the time to individually clean the entire restroom after use.