A good investor is a risk taker. Need to risk his money for an investment. Like he's willing to lose some money in order to make a profit. Open minded for new ideas of his team. His eagerness to gain more knowledge to strive the best. Make money out of your money is a best thing that will happen for investor.
From my experience a good investor will never take any risk,a good investor might not necessary earn a 100% return but he will make sure his investment will increase ,taking risk is another thing,you could risk and expect it to cross 100% and almost all of the investment in the virtual world does have a risk attached to it but the incentives are attractive.