The concept of scenester boggles my mind.
Do such beasts really exist? I don't believe I've ever seen one! Or maybe I just turn a blind eye to them, or something.
Not all people who aren't very energetic/lively seeming are scenesters. I have a friend who is awesomecore, and she has awesome music taste and definitely spends a lot of her time looking for new music and you know, just enjoying it, but she's a total statue at a show. She just stands there, and nods her head. She doesn't care about people's opinions of her, she's not at the shows to be "cool" or whatever, she just simply enjoys the stuff but is rather very boring about it! She's not a scenester at all.
And advice for who's new to the indie "scene" and all, I think things are just pretty simple. Just keep looking for music whatever it is, and not let people's opinions get to your head. If you end up liking any band, no matter what kind of band it is, for whatever reason, then that's awesomecore. I don't think one should care about how credible or deep a band is as long as you simply *enjoy* them.
Don't shy away from checking out the "big" indie bands either, because- just because they already have a large established fanbase doesn't mean that they need less support or anything.