Click the Join Queue button on any of the bot you wish to trade with and the bot will add you as a friend right before your turn. He will send you a trade when it is your turn after you've accepted the friend request. If you do not answer in time, you will need to re-join the queue.
The bot will give you a credit amount for each card, allowing you to bank up to 1500 credits should you wish to purchase items at a later time. If you want to get one of the last 2 item of a specific kind, the bot will raise its price. You can wait until more items of that kind are added to get regular price.
A chat message will inform you of the price paid for each item.
The commands are simple:
You have 3 minutes to complete your trade. After 3 minutes the bot will cancel the trade.
Each bot will accept a maximum of 20 cards, 5 emoticons and 5 backgrounds of each kind.
TF2 Keys are accepted at the rate of 250 credits, and metal is divided based on the backpack.tf price.