Connecting to DApps is relatively simple. First you need to make sure that MetaMask is installed. If you do not have MetaMask installed, you can learn how to install MetaMask below.
After you have installed and unlocked your MetaMask wallet you can connect to DApps. Some DApps will automatically request access to MetaMask right away upon opening the DApp. However other DApps may request access only when your Ethereum address is needed. You will see the following screen when a DApp is requesting access.
Simply press on “Connect” for DApps you trust. That is all there is too it, now you have connected MetaMask to the selected DApp. Being connected can allow for faster and easier transactions. It will auto include any transaction data needed to complete transactions while sending tokens or Ethereum.
Want to learn more about DApps? Check out this article.