Buying things on EBAY requires the following steps:

1. Register an EBAY account: Open the EBAY website, click the "Register" button, fill in the registration information and create an account.

2. Search for the items you want to buy: Enter the name of the product you want to buy or the keyword in the EBAY search box, and EBAY will return a list of related products.

3. Filter results: Filter the search results according to your needs, such as price, location of the item, seller's credit, etc.

4. View product details: Click on the product you are interested in to view the detailed description, pictures, seller information, shipping information, etc.

5. Place an order: If you are satisfied with the product, you can click "Buy Now" and follow the prompts on the EBAY website to complete the payment process.

6. Confirm receipt: Wait for the seller to ship the goods, confirm receipt and check whether the goods meet your expectations, and make comments and feedback on the goods within the specified time.

It should be noted that when buying items on EBAY, you need to pay attention to the seller's reputation and evaluation, and choose sellers with high reputation and good evaluation to ensure the safety of the transaction and the quality of the goods. In addition, you need to understand EBAY's shopping protection policy, such as returns, refunds, dispute resolution, etc.