Some solid advice here, but after six cycles as "the new guy," I've found everything goes better if we add these two elements to the list. Both are Day 0-30 priorities<p>1. Figure out what the organization knows that you don't. Learn it. This can be anything from technical tools to conversational tropes. Embrace as much as you can -- even if it means stretching beyond what you're familiar with. If something triggers your gag reflex (and that can happen), figure out how to sidestep the problem.<p>2. Identify what you know that the organization doesn't. Find situations where you can put your imbedded knowledge to work and get recognized quickly for it. If you're lucky, your manager or sponsor is heavily invested in helping this happen. If you're flying solo, find new allies that can help you put your unique masteries to work.<p>Impressions form quickly. I've found that within 30 days, people already start to believe that either "wow, that was a great hire!" or "this one's still settling in, but it'll probably work out fine," or "did we maybe hire the wrong person?" It's surprisingly hard to change those perceptions.