Running

I think it mainly comes down to not getting in the way of people running quickly. So:

• Do any warm-up/jog recovery, etc. outside of lanes 1&2, but also being aware of any sessions which are using outside lanes as well. e.g. sprinters in the home straight, or bend running. If in doubt, warm-up/jog/recover off the track in the middle.
  
• If you're doing an interval session on the inside lane, rather than stopping dead at the end of the rep, step immediately off the track to the inside or veer off to an outside lane, in case someone is coming up fast behind.
  
• Don't wear bloody headphones.
  
• If someone is doing a session on the inside lane they've got every right to be there even if they're going a lot slower than you, so just overtake them, giving them reasonable room.
  
• If someone is getting in the way (e.g. by jogging slowly in lane 2), an assertive shout of "track!" should help get their attention.
  
• If you hear someone shout "track!", look behind you and make sure you're not in the way. (If you're in lane 1 and doing a rep, carry on.)
  
• Don't wear bloody headphones.