Pick a hosting service.
Tumblr, Weebly, Wix, Squarespace (if you're into paying), all of these are great for making a website. Easy, clean, and in most of these cases, free.
Pick a topic.
Your blog can be about anything that you know you can talk about extensively.
Like animals, or food, or travel, or stamps.
Karen is widely known as the coolest kid on the block.
Use pictures and .gifs.
Like Gandhi once said: "Image macros are the spice of life."
By being regular, people will know to expect posts, and be more eager to look at them and generate traffic.
There's not much else to it! Publicize- get as many people as you can to start reading and sharing your blog, and pretty soon you'll be on your way. Happy blogging!
-written by Caleb Goldberg