Twenty Twelve Jetpack Sharedaddy positioning

Hi All,

I am starting to develop a website based on the twenty twelve theme, I have created a child theme.

I want to add the sharedaddy buttons to each post footer so I can style these and incorporate them into the post theme etc.

Please could someone point me in the right direction on how I would do this and which php files I would need to edit?

If this helps, the website is http://www.dclord.com

Thanks in advance,

Dan