Yes, it's really easy to receive the Decred from the air-drop

You go to https://wallet.decred.org/#/add
create new wallet (give it a name) and go to Show Advance Options in the same window that the username and Click Specify Your Wallet Seed and Create.

My question now is, when i try to send funds it says "the funds are locked by pending spend proposals", can anybody explain what this means?

Thanks