You go to their blog, and then in the upper left hand corner on the bar it says follow. Click that. (: And just like that, you're following.
How do I do that though!? Oh boy...
uhm.. how do you go to their blog? or what? ha! Just type in their blog address. For example! My blog: alexiskathryn.blogspot.com <you would type that in to your browser, and then when it loads at the very tippy top of the page there's a bar that has the blogger symbol, a search bar, and then it says follow, share, report abuse, or next blog. and you click follow!
Okay!! Thanks!! :D I get it now