You go to the character you want to trade and click ownership. You'll a see the "Transfer character" option and when you press that you'll have to put the username of the person you'll transfer the character to. They'll have to accept your trade first before the character is fully transferred :>
I am very new to this app so how do you trade? Do you just do the transfer character thing? Isn’t that a risk of getting scammed? Idk sorry I’m very new here.