Double tap = Like
Double tap into the photo will like the photo
Mention other user
Using @ like in twitter will mention username
Hashtag
Just like on twitter, you can use hashtag (#) into instagram
Remove your comment and Caption
Remember you can't edit the caption after published. You can only remove it. To remove the caption, you can go to the photo within the caption that you want to remove. Then go to comment tab, and slide the caption that you want to remove (swipe from right to left until the delete button showed). This step also could remove your comment.
