as i am a newbie.. i know nothing about trading... what should i do to start trading and multiply my btc.. guys please help me
If you have a little money to trade, I suggest don't fall into margin trading because your fund might be loss in thin air. Start investing in coins with strong fundamentals only. You can find them in coinmarketcap.com, and some of them are ripple, ICX, IOTA, etc.
Try growing your assets by joining bounty campaign too. Hold for a little time, when you need cash you can sell it immediately in exchanges that display its price higher than other exchanges.