Explore with purpose!

cc licensed flickr photo shared by sir_watkyn
Here's the thing -- and this is applicable to more than just Twitter -- Twitter isn't something you watch. I'm not here to make rules about how Twitter should be used, but if I were, here's one rule I'd make: you have to be involved.
Twitter is what you make it. And if you make it nothing, it will be nothing. Which is too bad, because if you work on it being great, it can be great. So explore with a purpose. Decide what you want Twitter to be for you. Are you going to follow as many educators as you can and just sit back and see what they have to say? That's perfect if that's your purpose. Are you going to follow a select few, 40-50, and involve yourself in the conversation? Great! How about Diigo? Are you going to join and sit back? Set a purpose! Be a conversation starter. Be a link sharer.
Update: It didn't take long, but wmchamberlain pointed out.....all right, I'll just say it: I was wrong. I'm going to leave my post as I originally posted it, but Twitter can be something you watch. That can be your purpose, and an important one, at that. More in the comments.

