What are the icons on a post for?

Across the bottom of your post you will see several icons, each of which will perform a different function on a post. You may up or downvote a post, remind the post, leave a comment, or boost the post. You may also access the edit menu by clicking the edit button near the top right corner of the post, indicated by three vertical dots, from which you may make use of more options such as edit post, share, remove pin, translate, follow/unfollow, and delete post.