The key will be to invest as much time as possible to reading up here on NamePros and educate yourself on finding valuable domains for good prices. Learn what type of domains sell and once you are confident make a purchase.
Using sites like NameBio can help you see what domains are selling for and at what price you should buy it at in order to make a good profit.
When it comes to domain flipping there are a lot of factors to take into consideration but as I mentioned take you time learning all you can before you make a purchase.
- Will