I have 0.016BTC.
How can I multiply it and make profits?
Trading is not recommended unless you have some previous experience.
HODL(ing) is always good option.
Alternatively you can
1 - Invest in casino bankrolls (see my signature how such investing works)
2 - Lend your BTC to others (in
LENDING SECTION or using exchanges like poloniex, bitfinex)