The Token exchange is accessible within the Burstcoin wallet.  If your wallet was installed using QBundle you need only to start the wallet and connect to your Burstcoin account.
If you are using a standalone wallet (currently all wallets installed without using QBundle), the exchange is accessed using a standard web browser to connect to your localhost (wallet).
To connect, enter  127.0.0.1:8125   into the address bar.

At the moment a Token is named Asset on the BRS wallet.

Select asset exchange  to observe an asset, select add asset and enter the asset id or the issuing account id.
Your selections will be listed along with information such as a description, buy and sell orders, quantity, etc.

You can check the transfer history of assets in your possession which are found under my Assets.
This includes assets that you have purchases as well as any assets that you have issued.

You can check that status of open order by selecting open orders.
From this list you can cancel any order.
Order cancellations are not instantaneous as the order cancellations must be propagated through the network.
There is a possibility that your order may fill while this process is proceeding.

To issue an Token , select issue asset.
The form for entering the asset information will appear.

There are several mechanisms for paying and rewarding your investor.
To do so, you will use one of three Token distribution modules:  dividendsautomatic asset distribution, or share swap.
Select payout dividends to choose one of the three modules.

By default, the asset exchange does not list any asset.
You must locate the assets that you wish to follow and add them to your list using the add asset button.
There are several online resources (asset exchange explorers) being developed to help rank assets in meaningful ways, such as by volume, number of trades, or another useful metric.
These resources include a variety of filters to help you locate assets of interest.
After locating an asset, you can bookmark it your list.

Note: Incognito mode (or its equivalent) is not supported for adding assets to your watch list.  In order for your list to retain the asset that you add to it, your browser must be in normal mode.

By selecting an asset, the interface area will automatically display the corresponding information.
This includes the number of tokens that have been created (“quantity”), how divisible is the token (“asset decimals”), a brief description of the asset, who created the asset (“account”) and the asset identifier (“asset ID”). This information is critical, in fact the asset names are non-unique.
This means that there can be multiple assets that have the same name.