CNN Money gives some sage advice about the right way to ingratiate yourself with your new colleagues when you start a new job...
- keep your good ideas to yourself for a bit, until your coworkers' guard comes down a bit
- be respectful and subdued, not their best friend
- learn the culture, but don't come off as nosy
- find a way to work with, and impress, influential people
The article gives much more detail on the whys and hows, and makes some very solid points.