Their signs, chants, and behavior in every demonstration I've seen or read about shows what they want - everything for nothing. They should be living in Greece, because that is their mentality, not to mention the anarchist/communist hangers on that the core never denounces.
The Occupiers are class-warfare cry-babies and will never be satisfied, even if the power of "large corporations" was reduced. Some may be approachable for a beer, but the vast majority will never be satisfied until this Nation is based on Euro-socialism. Don't lose site because a few seemed friendly. Who do you think they will vote for this November? The person who promises them the most stuff.
Keep in mind that what the leadership of OWS wants is not necessarily what the low-level members want.