一件难忘的事情(An Unforgetful Thing)

How time flies!I'm fifteen years now.During the long time,there was one thing that I will never forget.
    The Spring Festival is our traditional festival.During the Spring Festival,people usually visit their friends and relatives.When I was 9 years old,my family took the bus to my grandparents' to say "Happy New Year" to them.
    In the bus,I had a good seat.At 7:30,the bus came to a village.A woman got on with a baby in her arms.At that time,there was no seat.But she must look after her baby carefully.She had to stand next to me.I wanted to stand up and let her sit down,but I was afraid of hearing the other people say"That girl want to be praised."I looked around.Most people were looking out of the windows and some were sleeping.Suddenly,a little boy behind me,stood up and made room for the woman.She said "Thank you very much" with a big smile.The boy smiled,too.When I told my cousin about it after that,he said "The child is the father of a man." I'm very ashamed.Why could't I do the same thing as the little boy did? 
    From that I learn that we should do our best to help people who need help.If everyone makes a contribution to helping others,the world will become much more beautiful!