In my many years if trying to make a name for myself in the comic book industry, I have come across a lot of great people. I've met superstar creators that sell hundreds of thousands of books, and I've met indy artists and writers that still print their books at Officemax. From small press to the big two, I found that the overwhelming majority of these good people shared one integral character trait: Humility.
They didn't try to dazzle you with rehearsed charisma. They didn't claim their project, script, or art was the best thing ever. And they sure as hell never bashed other creators work, even if it was from creator with less experience, and ESPECIALLY if it was from someone who has has encountered far more success than themselves.