1) Keep a strict stop loss
Keep a strict stop loss while trading. In a volatile market, where sensitive news could spark a sell-off, you could easily be at the receiving end. Stop loss would prevent further erosion of capital in case there is a meltdown in markets.
2) Play in high beta names that are liquid
It's best to avoid stocks that have low volumes and in which trading is thin. Also avoid stocks that show very little movement, so as to ensure that you have opportunities to make money.
3) Avoid being too greedy
If you have made a decent sum on a trade, the best would be to exit the stock and avoid being too greedy. You never know when the stock could crack and you could end up with losses.
4) Never buy immediately on market opening
It's best to avoid buying stocks as soon as the markets open, as there is a possibility that you may enter at the wrong time. Wait for the markets to stabilise and than take a call.
5) Never chase stocks on news
There are many traders who chase stocks based on tips and news. While this may work once in a while, it may not necessarily be the case, especially if the stock has already run up. Chances are you may buy before the profit booking sets in, and end up with losses.