The first step is getting the MetaMask browser extension installed on either a Chrome, Firefox, Brave or Opera browser. The workflow for installing the extension is about the same for each. You can do it from the extension directory of your browser or can visit the MetaMask download page at:
Select your browser type and download. The will open up the Chrome extension page for MetaMask and with one click you can install the extension.
As soon as it is installed, you can create an account. To do that, open the extension (click the icon to do that). You will be asked to Create a new password. You will want to keep this one offline so you will never lose it. You will also be provided with a 12 word seed phrase. Save these words too, you will need these if you ever need to restore your account. These are important. Print them off and put them in your safe deposit box or home safe or other place where you can get them back.
This is it, now you have MetaMask installed and an account created.
Now you can deposit funds by clicking the buy button, or just keep learning the world of Ethereum and Ethereum based crypto coins.
And you can also receive crypto based currency. To do that, the sender needs to know your crypto wallet address. That is easy to give them now. In MetaMask, just click the three dot menu at the top right side of MetaMask and select expand view. Then copy the address and send it.