Chemical Engineering can open doors to many different industries. Not only can you work in the oil and gas, cosmetics, food and beverage, and pharmaceutical industries just to name a few but mainly, you would be working to make something larger than imagined. My personal word of advice is to ask yourself what do you want to create? For me, I always loved food. But how is that related to chemical engineering? Well, in big industries like Pepsico or Coca-Cola, a specific formula for their products has been made but this also has to be maintained. It can be the job of a chemical engineer to ensure that the quality of their products is consistently being made the same (quality engineer).
Becoming a process engineer can also be a career path for a chemical engineer. This broadly means that you design and maintain a chemical plant. Think big petrochemical plants or small craft breweries. It does not necessarily mean that you will be working in a lab all day or even at all. It's more about using what you learned in the classroom and applying it out in the field. What documents will help you achieve a good design.
In regards to what characteristics (personality, passions, style...) make up a chemical engineer, I would say that there are so many personalities, styles, and passions that drive them. When deciding to become a chem engineer, I think the more important question to ask is what industry do you want to work with? That's where you will find people that share your passions and interests. As for style...I would stay...business professional is the way to go! Unless, you're out in the field; in which case, jeans and a t-shirt with personal protective equipment (hard hat, nomax suit, ear plugs, lab goggles) is required.
Job descriptions that may interest a chemical engineer include, Process Engineer, Packaging Engineer, Product Development Engineer, Quality Assurance Engineer, Nuclear Engineer, Manufacturing Engineer, or Project Manager.