Definitely an Introvert, Extroverted behavior is something i had to learn, definitely used alcohol as a crutch to do this for a long time, but I can switch it on sober now. I do require the recharge time alone. I have a friend and sometimes band mate who is one of the most animated (and talented) front men you will ever have the pleasure of watching; off stage he is soooooo introverted to the point that he rarely goes out to see other bands because crowds give him the willies.