Practice belief. When a friend, a relative, or a complete stranger brings new information to you, insist to yourself that they have come to you with facts and only facts. Do you feel incredulous to hear that the moon is a planet? That there is a mirror world of diamonds beneath the sea’s surface? That the man teaching you how to skip rocks is a six-time national champion in skipping rocks? Let drop your doubt: believe it. Practice incorporating this new information into your working concept of the world. Repeat what you’ve learned to anyone you talk with—for days, for weeks, for a lifetime.