The first thing we suggest you do is decide what type of products you want to sell. Generally it's best to start selling something you are interested in because you are going to be spending a LOT of time thinking about it! Do you love fashion or movies? Perhaps you feel excited about the thought of new gadgets and technology? It's likely that there are plenty of other people who also share your interest - giving you an instant audience for your product. One idea is to jot down your interests and then make a list of products that are related to these interests.
Once you've thought of a couple of ideas, it's time to start researching suppliers. This is where SaleHoo comes in. Use the search box to look for the product(s) you want to sell. When you've found some suppliers who fit the bill, contact each supplier individually to get more information on pricing, shipping, payment methods accepted, and so on. It's a good idea to contact more than 1 supplier before you start buying to compare prices.
Hope this helps! Let us know if you have any more questions.