How do you put those buttons on youtube videos?

Question

You know how you watch videos on youtube and this little gray box comes up with words or a link in it? how do you do that?

Answer 1

its called annotation you have to make your vid with the annotations

But im not really a genius on htat so I' mnot really sure how you do that lol! sorry if this was no help to you  

Answer 2

Click account then My Videos. Under the video you want to have that click "annotations"