If you are generally upbeat and enthusiastic, you should definitely include a characteristic such as "energy" on your targeted resume. According to most CEOs, this is one of the most important soft skills an employee can have.
Demonstrating a positive attitude each day inspires and motivates other team members, and can aid in climbing the career ladder in the long run. Of course, if "energetic" doesn't quite describe you, the best way to improve your attitude is through physical activity – which could aid your health as well as your employability.
Synonyms of Energy: Positivity; Positive Attitude; Multitasking; Dynamic; Enthusiastic; Fast Thinking.