Your blog post might look like this:
Meet my main character, Billy. Billy is a 16 years old, skinny boy with glasses. He squenches his face a lot because he has to wear his mom’s old glasses, and his clothes come from the second hand store because his mom doesn’t make a lot of money. He’s always reading books in the hallway, and often runs in to things as he’s walking. Billy loves to read about plants and hopes to become a biologist some day. He spends a lot of his time on the weekend in his garden, tending to his plants. He’s even given some of his plants names! It’s just Billy and his mom at home, but they have a very close relationship. It’s actually the only good relationship Billy has. See, he doesn’t have very many friends at school. The tough guy athletes pick on him and call him names. They all laugh. Billy hates going to school, and wishes that he had just one friend that would understand him. Maybe that’s why he likes his plants so much.