Hi,
My name is Martin.
The best and the fastet clue for you to increase youtbe comments is method, which is using by best american proffesional marketers:
CALL TO ACTION at the end of the video,
example text or speach call to action is :
"Please, comment this video below"
I've finished several courses of internet marketing, first of all about youtube marketing. So if you want to receive the best methods of increasing comments in youtube...
chose my offer :)
Regarts
Martin