Create a Facebook Follow Box

If you have any blogs or websites, you will create a Facebook Page to let people follow it, but you must add a Facebook Follow Box first.

Steps

Log in to your Facebook account.
Click on the "Developers" link, which is found in Facebook's footer or click here.
Then, click the "Build for Websites" link
Click on "Core Concepts", and then choose "Social Plugins"
Scroll down and choose "Like Box".
Enter your Facebook Page URL to Facebook Page URL box (for example: https://www.facebook.com/platform).
Insert width, height or color scheme as you like. Use Show Faces to show people who already like your Facebook Page. Use Show Stream to show your Facebook Page's post and more (you can learn yourself). When you are ready, just click on "Get Code".
Copy and paste the first JavaScript code to your blog/website's HTML ideally right after the opening <body> tag.
Then place the second code (widget/gadget/plugin) to wherever you want the Facebook Follow Box to appear on your page.