Rated 4 out of 5 stars

I want this so bad but, don't laugh at me, I have no idea how to use it! Is it just for links?! What if i want to search for a normal YouTube video? I can still use it? But how??? There is no button or add-on on my YouTube to press. I even tried right clicking all the stuff, from the video link in my search tab from the video itself and I don't have any option, anywhere. I know, I'm stupid, but please, can somebody tell me how to use it?