There is many ways to grow up your bitcoin,
Im earning btc by signature campaigns and than I trade them.I buy another currency on low price and selling them on much higher price. You have a higher chsnce to gain profit if you always monitor the price of most of the cryptocurrency online.
Yah. Its explained to all new comers in many threads. So many ways to earn bitcoins in this forum. Through signature campaign, gambling, tradings, designing, games, taking up new projects and etc. Each one requires its won way of working and amount of earning.