Great advice - all of it. I like that you included how you dress matters, along with being nice and having empathy! :) I've learned this, too. Unless you're a billionaire who can get away with a hoodie and socks/sandals as a work outfit, dressing to aim for the level you want to achieve is always a good strategy. It will make you stand out in people's minds. Just like you can't see the outside of a house when you're living inside it, you can't see the impression you're making on others and how much of that is visual. It's probably more than you think.