How to show [Add this sharing buttons] in Blog page in wordpress

I’m using:
Wordpress4.1.1
DW Timeline Pro 1.0.7
AddThis Sharing Buttons 5.2.0

I can see the sharing buttons in the each post:
Sharing buttons in a post

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But I can not see the sharing buttons in the timeline:
No sharing buttons in timeline

What I want is to show the sharing buttons in the timeline so that the readers can share the post without having to click the post
enter image description here

I know I might need to change some php files but do not know which files to go, hope someone can help, thanks 🙂

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