Just like every other cryptocurrency, buying Bitcoin cash requires a cryptocurrency wallet. For the uninitiated, a cryptocurrency wallet is simply a virtual location, either online or on a physical device where you can store your coins.
The easiest way to set up a wallet is to get the wallet service provider of your choice and activate the wallet address. The is plenty of wallets you can choose to store your BCH. On activating the wallet, you can copy the BCH wallet address and send give it to a sender.