Players are urged to re-read Tournament and Ladder Rules and Provisions. All the rules there hold for the Olympics as well. In particular, Any agreement among players of the same team to fix results is EXPLICITLY PROHIBITED.
and
Olympic Oath
In the name of all the competitors I promise that I shall take part in these Olympic Games, playing in a timely manner, respecting and abiding by the rules which govern them, committing myself to these without the aid of any computer programs, software or electronic and mechanical devices of any kind in the true spirit of sportsmanship, for the glory of the games and the honour of my team.
rabbitoid has kindly added indicators to signal potential long games, to help you judge your pacing. They are based on the longest games in previous Olympics.
No stars: no hurry, but... : at least a move per day : move often : don't leave the keyboard for too long
and 
: at least a move per day