Heroes:
It's all about integrity today, Hero. Your life is full of dramatic gestures. Even your wardrobe is a dramatic gesture, and today those gestures can have a big impact on those closest to you. Your teammates, your sidekick, your best friends, and the main squeeze, all see you, and recognize you for who you are. A sincere and honest gesture (other than a punch laid on a super-villain of course!) will go a long way but it's got be real. Faking it for effect is going to go over about as well as the last three times you faked your own death (and remember cleaning the rotten casseroles out of your fridge after those?). Be willing to live big and blatant, but be real about it.
Villains:
Your life is all about draaaahhhMA Villain, the stars know, and your drama has a huge impact. Your dramatic gestures have crashed global markets, corrupted national elections, changed city skylines, and ripped off Peter Parker's Aunt May in a really ill-considered case of identity theft. (Ahem. The less said about that the better). Today your gestures will have even more impact than usual, and the ones closest to you will be most affected. That's normal, of course, since the people standing next you usually get bruised when a hero punches you into them but today there will be impact on the people you care about, too. A dramatic gesture done for effect will likely backfire, though let's face it. Most of your gestures for effect have precisely the kind of mass property damage you intended but at least try to honestly, truly, really MEAN your malicious intent today Villain. Honesty, after all, is the best policy.