A new job is cause for celebration, but just understand that the meaning of your promotion is probably impossible for the layman to understand. Pretty much every promotion sounds like "I just got bumped from Assistant to the Regional Manager to Assistant Regional Manager" to the rest of us. Your friends and family will be happy because you're happy and that makes them happy, but you should go into your swaggering post-promotion bragging session with the understanding that you might as well be speaking Latin. Also, realize that everyone you tell will think you make a lot more money now and resent you whenever you don't pick up the tab.