Physicists like to explore interactions of matter and basic principles of the laws that govern our universe (we’ll stay away from parallel universes, but it is an interesting field in theoretical physics). Physicists can also study theoretical areas such as the origin of our universe or the nature of time (Is time travel possible? According to Einstein the answer is yes, but complicated).
Physicists can also delve into experimentation or even invention of new devices. Some of the new devices a physicist can improve upon or invent are medical equipment, advanced materials, and also optical and electrical devices.
The exciting thing about physics, like most hard sciences, is whenever a question is answered usually many more questions will arise from the answer to explore. So if you enjoy what you’ve read thus far, this will be a field you will enjoy.