Go to the drop down menu that appears under your user profile on the top right of every page and select PRO dashboard
On the bottom left of this page, click on Profile page settings, then click on the Subscriptions tab on the following page.
Specify the tag you want to subscribe to and select the type of files you want to apply it to
All Documents will apply to all files on SlideShare
My Uploaded Documents will apply to files that you have uploaded
My Favorited Documents will apply to files that you have favorited.
View all your subscribed tags
Once you have added in your tags, you will need to click on the Modules tab and add these subscriptions to your profile
Once there, you will need to scroll down and click on the '+' next to the tags that you wish to add and then select the orange Save button. You can also click and drag to reorder the way these files will be displayed on your profile.