Why? Why not?
Give 1 reason to play video game on the bus. And 1 reason NOT to play it.
+ Entertaining, Passing time... - Motion sickness, Bad for eyes, ...
Give 1 reason to listen to music on the bus. And 1 reason NOT to listen to it.
+ Convenient to sleep/relax... - Can't talk to your friends,...
Give 1 reason to read a book on the bus. And 1 reason NOT to read.
+ Relax/Expand your knowledge... - Get dizzy, eye strain...