Most people think that EJs are extremely energetic all the time. That's not true. EJs are just as passive as your average melancholic or phlegmatic. We chill out and we procrastinate...
...except when it's about something important. Then we don't really run out of energy to get stuff done. But everyone would be energized for the right cause. Except EJs have plenty more "right causes" compared to other people. IP says, "chill, it's not important" and EJ says, "It is important. We gotta do it. Really! We must!"
But the rest of the time EJ is just like IJ or IP.