Best wayto grow your bitcoins is to find crypto exhanger and then trade with potential growing altcoins or find ptc elite legit sites and invest bitcoin there,find hyip with 150% roi or find revenue share with maximum 120% roi and invest for longterm there.
Never go with HYIP, most if not all of them are scam. Be more realistic when it comes to investing or growing your bitcoins, ensure that you will put your investing in legitimate investments, put your money in gambling sites, they have the best return of investors. You will know it because they win in the long run and gambling industry is now booming.