If you have not installed Meta Mask, you can download it on Chrome, Firefox or on Android and IOS on your mobile.
Head over to the Meta Mask download page and select your preferred option to download.
Once you have installed Meta Mask and created an account, click on the Account profile
Then Click on the settings button
Click on the Networks tab
And then click on Add Network
You will see a form with fields that you can fill in the network address.
Key in the following details below and click Save and you are done!
Network Name: Smart Chain
New RPC URL: https://bsc-dataseed.binance.org/
Chain ID: 56
Symbol: BNB
Block Explorer URL: https://bscscan.com