Giving up your seat to senior citizens,pregnant women and the disabled is the benchmark of courtesy.Relinquishing those seats to a pregnant woman is not only thoughtful,but it will keep all the other women on the train from scowling at you while a pregnant woman is standing.
Also,giving the seat up to someone carrying a kid or dealing with a stroller is great,and will probably keep that kid from falling all over the floor or touching their drooly hands to the poles.Giving the seat up to someone in a cast or brace is a nice gesture
as well.
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