You know that moment you’re drinking tea or watching a movie and suddenly you jump up thinking, “Hey! I’ve got it!” ? Apart from startling others with your shout, you could surprise them even more with what you make out of that great idea.
Your professional skills may be good, your intelligence may be top-notch, but your image carries you further than what you can do. Your intelligence should show not only be in abilities but in the way you carry yourself and speak.