Meeting authors who are nice at an event.
This might seem pretty obvious; but it isn't! I've met plenty of authors who are pretty clearly tired and grumpy and/or a little too full of themselves to really give me the time of day.
I realize events are draining; trust me - I do them too!! But it REALLY makes a difference if you turn off a reader. I have stopped buying books from authors who were less than savory to meet in person; I don't support diva behavior.
Recently, I had a chance to meet Lisa Kleypas at RT - and HOLY COW TOLEDO was she lovely. Stood up, shook the hand of everyone she met, big, big smile, so very grateful to see you - made me SO much more excited for any of her next books, and excited about her as an author!
DO THIS. Yes, it may take a while if you do give attention to each person in line, but if they're waiting they really want to see you!
I don't care who you are as an author; your readers are important.
I cannot tell you how frustrating it is when I have a potential client have a non-industry lawyer look over our agency agreement. Primarily, this is because a lawyer not familiar with the industry is likely to suggest changes to industry standards (like commission rate).
I absolutely have no issue with a third party looking over any agreement - you just better make sure they know what they're talking about!!
Be sure to check out the AAR Canon of Ethics if that agency is a member; if they are, there are standards they will adhere to. (Though don't be put off if they aren't a member, either; here's a great post on that). If you have someone looking over the contract, and the agent responds with: sorry, this is standard, don't automatically feel like you're getting a bad deal - talk to others in the industry if you want to check if it's standard!