There are many methods that you can use in order to pick stocks. 
Bilal Basrai was ranked as the seventh best stock picker in the health 
sector by Starmine Monitor and has pointed towards the following methods
 as being useful for people who have never picked stocks before.
Macro-Analysis
A
 macro-analysis requires you to be able to see the larger trends in your
 industry and how they are going to affect each stock that you are 
thinking about picking. This means you need to take a long term approach
 to your picking, ensuring that you don’t overpay for stocks when the 
economy is poor. It is also a good idea to diversify your portfolio when
 using this method to protect yourself against unexpected outcomes.
Fundamental Analysis
This
 method involves determining what you think a stock is worth to you. 
This will often not gel with the amount that it is being traded for, 
with the actual trading price being higher or lower. The simple aspect 
of this technique is that you simply purchase the stocks that are 
trading for less than your estimated value, while selling those that are
 trading for more. However, the value you place on the stock will be 
subjective and you can’t always guarantee that you will get the returns 
you want on your picks.
Technical Analysis
Though 
Bilal Basrai focused primarily on long term investments over short term 
trading during his time on Wall Street, he still understands the value 
in the Technical Analysis method. This involves digging into the price 
movements in the stock market, particularly those related to a potential
 pick, allowing you to determine short term trends that can be taken 
advantage of. This is a technique that is best used by traders, rather 
than investors.