Which of the following courtesy behaviours should a Singaporean have?
(You can select as many as you like).

Saying "Thank you" after receiving assistance from others
Never resting feet on the seat in front in public venues such as movie theatres and concerts
Letting others get off the Bus/MRT/LRT before entering
Inviting family elders to eat first
Being punctual for functions
Returning library books to the collection bins after use
Greeting family members and neighbours
Saying "Please" when requesting for assistance from someone
Holding doors open for the person walking just behind
Clearing up and returning trays after a meal at a Hawker Centre or food outlet
  
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