Answer:
1st you should watch closely your activities...
like.. which sport switches you on and which doesn't.
2nd you should learn more about the sport .. like rules , game play , how to play , etc
3rd if u put your heart in that thing , you may like it ... once u start liking the game seriously.. dn u will never try messing with the rules.
and you won't allow anyone to mess either.. that will make u a sportsman..
you will love the game , you won't mind loosing or winning and will play fair