I don't know if people view me as shallow often (could be -- I can be clueless), but some of what boondocked and others wrote rings true for me:
* Beauty/aesthetics are really really important to me. Not so much with people and not necessarily in a "traditional" sense, but with my environment, the items I interact with daily, need to be beautiful. Sometimes, a new brooch IS a reason to get up in the morning.
* There is very little that I'm not (passionately) interested in in some way. I have a tendency towards way too much jack-of-all-tradesness and end up with shallow or random knowledge (and even more questions/theories) in a lot of subjects.
* If I'm being candid, as with very close friends, I can pass random and seemingly shallow judgment about others' choices (for example, single occupancy vehicles). Usually this just reflects an overwhelming frustration with apathy. Sometimes, however, I have bizarre criteria for making or narrowing or explaining choices (sorry--couldn't date him because he is against the serial comma). It's usually to keep indecision at bay, but sometimes becomes shorthand for a whole host of things that are harder/more sensitive for me to articulate (his attitude towards the serial comma was a part of an overall apathy towards the world outside his narrow interests).
* I don't really have a ton of stick-to-it-ness when it comes to things/goals. People, yes. But goals are guidelines and circumstances change and I'm not really one for finishing things completely anyhow. This might read as being flighty/shallow?