Actually that basic, you'll be Rocket League Credits diverted to another screen where you'll see the substance of the two inventories and have the option to make trades. 

In this subsequent screen simply select the articles you need the other individual to see and utilize the visit to deal. 

In these pages, you can assess the costs of the items and even get players who distribute what they are searching for and www.lolga.com what they offer you in return.