1. If a man walking is disturbing, then that is well...disturbing.
2. Are they obviously on a break? How can you tell? If they are should they be joining in with the whole circus?
3. Which means 2/3 to a 1/2 do turn around and pay more attention to what's going on behind them than they are to there job.
4. Which is what everybody should do.
5. Does it matter if your sector is quiet? If you are only controlling one aeroplane is that less likely to have an emergency or need your help? Nope. But you've buggered off to the other side of the room so tough, our problem for being on a quiet sector.
6. One person saying hello is more distrurbing than what looked and sounded like a bunch of chimps fighting over a banana? Really?
7. Cultural differences apart. Professional still means professional.