Once you have logged in, look to the left of the top menu and select the IEO Market.
You can see Gram Token Sale featured on the at the center of your screen.
Click on "Explore".
There are 4 panel carefully laid out for full comprehension. Those are about the Project Details, Sale Phases, Team and Road Map.
This includes Overview summary about the Token Sales on the left screen.
On the left side of your screen, you can see Contribute.
Buying: The total quantity of Gram Token you want to purchase.
With : The funding currency that you want to use. Note: Only USD or USDC
Click on the Order Detail to confirm the detail of your purchase.
Click Buy Gram Token to confirm.
You can also check out our complete guide to taking part in the Gram Token Sale here
For more information on Gram Token Sale, refer to FAQ here
For video guide on using IEO market, refer here