Coat tailing is not to be done blindly. One should be aware of the risks and details about the company.
Best way is :
-
Maintain an excel sheet
-
Note Down what people whom your respect are buying.
-
Judge if you can track the sector - A businessman who runs a company always tracks 2-3 main things about his business - for eg. price of key Raw Materials(s), per unit price of the product, competitor actions etc
-
Write 5 reasons why you want to buy the same stock and 5 reasons why you shouldnt.
-
Also write why would you want to buy this company and not its competitor
Be very honest and thorough in points 3 and 4
Remember, you are responsible for your own actions and money.
Dont trust anyone blindly
Also, be objective…Some people whom you coat-tail may be sharks.