Here is how you can get bitcoins:

1) By participating in signature campaigns here.

2) By investing money in bitcoins.

3) Mining is also an option if you have money for the set up.

I will suggest you to got for Ripple. It is currently under $1 and in the worse case scenario , it will be $10 by the end of this year. You will get 10 times of your investment by investing in it.