7. Hogging the armrest
占著扶手不放

Why would you think we don't want to use it too? Did you pay extra for exclusive use? Oh, sorry, we didn't realise.
別人也要用扶手好伐？這飛機啥時成了你的私人座駕了？不好意思，真沒看出來。

8. Standing up as soon as the seatbelt sign is turned off after landing
剛降落就起身

Where are you going? The doors are still very much closed. Great, now you're just standing there with your backside in our face.
機艙門還關得好好的，你這是趕著上哪去？好極了，你這么站著，是要咱們向你的屁股致敬唄。