How do I add social media buttons to my webpage?

Most of the social media pages have icon images that you can use to incorporate into your header or footer of your site. If you search 'face book icons' for example you will come across this link Using Facebook Brand Assets to their button assets. Twitter and many of the others have similar asset files. Figure out which version you want to use, upload them into your FILE MANAGER and then link them into your site. Once you place the images don't forget to actually link them to your specific social media pages.

Worst case, use a template that already has them incorporated and the CSS built. You should be able to edit them easily, or copy and paste the code into your own site. Make sure to update the icon paths.

Not an expert. I am still learning too but this may help.