The afflicted suffers from mood swings. Every 1d20 hours, roll 1d10. If the result is even, the person acts overly friendly. If it's odd, the person tends to be aggressive.
Your posture shifts unpredictably—open gestures one moment, clenched fists the next. Words pour out as welcoming warmth or harsh growls, your tone flipping like a coin, each interaction dictated by unseen, erratic forces.