I am new with bitcoin , and i want to start investing in it to start earning gain.
my Q? i dont know how to start and where i should begin my first steps, waiting your ideas

Trading is risky try mercatox and poloniex good for beginners in trading you can earn for waiting only i recommend xrb and bitcoin then if you make withdrawal you can add fee for fast transaction not like other exchanger you can also invest your time to read in forum then make atleast 1 to 3 constructive post per day then if you rank up to member join in some open campaign the key here in bitcointalk forum is knowledge for good profit even without investing