This is from one flight I got to experience today and what the person tiếp theo to me did.

When flying please remember to not do these things so everyone can have a nice trip ^_^

Clear your throat
If bạn have something wrong with your throat where bạn have to clear it every 3-5 seconds, get some medicine for it, everyone around bạn will appreciate it.

Only take up YOUR seat
Though bạn may have a skinnier person tiếp theo to you, that does not mean bạn should take up half of their seat, they paid for the full ghế, chỗ ngồi and would appreciate having all of it and not moving to the corner.

Leave your shoes on
Now I know...