Answer:
When socialising or appearing in public, there are simple etiquettes to follow.
Etiquettes are simply civil behaviour or manners that are good to have. They demonstrate that we are well behaved, intelligent and give consideration to others who share the same space with us at that time.
Trains are mostly a public mode of transportation. When travelling by train or aeroplane, the chances are high that one would share the space with at least one other person. So here are the following etiquettes to observe:
Cheers