research companies – learn about the business model , critical ratios – like price to earning ratio (P/E) , current debt , long term debt , etc
look for value – buy at a low price , rather than a high price
read about the management team – how long have they been running the company , what kind of insider holding exists
focus on the long term
be patient
focus on the long term and diversify
hold on to the winners and cut the losers out