Twitter inductee

Just recently joined Twitter and have no idea what I am doing. It is comparable to attending a formal dinner and not knowing what fork to use first, but way less stuffy. Fortunately, there seems to be plenty of guidance on the net and I have come across some helpful Twitterers. I am pretty excited about the possibilities of being social in the moment as opposed to more stagnant social networks. Though a bit apprehensive at the amount of time Twitter could consume, not sure if there are enough hours in the day. Are you on Twitter? How do you manage?