Gambling is the key to your answer as I don't see any other alternative to earn bitcoins fast, and if you have a good strategy and if you know on which you are betting then you can surely make some money at the end of the day If I have to earn bitcoins fast then I would surely go for gambling.
gambling is not profitable, besides its risky to try one, luck is always a factor either you'll win or not.. perhaps trying other alternative earnings here in the site is good, but not fast..
I believe trading bitcoin does not require any luck and it is a fast way of making big profits. But you need some big investments to get started with bitcoin trading.
Yeah, trading, but you gotta start with a larger amount when you want to try it... but its worth it..and its not so tiring...
The problem is that most of us do not understand the price action of bitcoin. It can be manipulated easily. Trading is negative sum game. It is losing game for most people.
It is better just to hold it.