The Activity section is where you can view interactions between
other Tumblr users and your blog and its posts.
In the initial menu, you’ll find a chronological list of Reblogs, Follows, Mentions, Replies, Likes, Gifts, Promotions, Asks, and Submissions.
At the top of that, you’ll be able to filter down to specific interaction types, and select the blog you want to view the interactions for.
On the web, click the “See Everything” option at the bottom or line graph at the top-right to be taken to your main Activity page, where you’ll find a cool interactive chart, your top post and biggest fans at the moment, and even more activity type filters.