effective promotion

Obviously, you would want to subscribe because you like their content and what they do, but what strategies do you notice help? For example, a lot of people like to put outros on their videos telling people to subscribe and check out their other videos. Does this really help, or do most people...

Hi, guys! So, I am still pretty new to YouTube. I've been kind of experimenting with the concept of promotion, but haven't really come across any methods that are effective. Please don't get me wrong here- I am not referring to the kind of self-promotion that is so insistent and repetitive that...