Step 1. Make sure you're registered on the site.
Step 2. Navigate to a category that interests you, or use the search bar to find a specific item.

Alternatively, if you're looking for a specific seller, you can search by their username by heading to the Shops page:
Step 3. Add to your cart if you wish to continue shopping, or choose Buy Now to go right to checkout.
You can only add items to your cart that are from the same seller.
Remember to read tips for trades to ensure the lowest risk.
Step 4. Follow the steps for checkout. These include choosing payment type and then placing order. You are charged a $3 service fee (subject to change), which goes towards helping cover PayPal fees. Currently, PayPal is the only payment option.

Step 5. Wait for your seller to contact you, or initiate a conversation yourself.
You can chat a seller by clicking "Chat Now" on their item page:

Or you can chat by clicking "Chat Now" on their shop page:

You can access all of your current and past conversations by navigating to your Account page, and then your Inbox:

Step 6. Complete the transaction with the seller.
Remember, to document all of the trade and NOT to confirm until the order is complete to your satisfaction. Report any seller pushing you to confirm before the order is complete. Best documenting practices include: using only Pixel's Chat system, recording the actual transaction, taking screenshots, confirming locations and in game names in Pixel's Chat system. If you're unsure of programs to use for recording or screenshots, ShareX is an excellent free option.

For account trades, please read the Account tips section here.
Step 7. Wait for seller to confirm delivery/completion of transaction. An email will then be sent to you as a reminder to confirm.
Step 8. Confirm the success of the transaction by clicking the "Confirm" button in your Account Dashboard's order table.

Step 9. Leave feedback for the seller. Accessible on their shop page.