So, your first several weeks should be spent proactively scheduling time to meet with anyone you may work with or learn from. Ask if they’d be willing to get coffee or lunch with you — you’d be surprised by how many people are generous with their time. Beyond gaining a clear picture of who works on what, take this time to forge friendships and ask personal questions. Seek to understand what makes people tick and what’s really important in their lives. In addition to these being rich and enjoyable conversations, as you grow more familiar with your co-workers on a personal level, you’ll be better able to challenge and support each other on the job.
With each person you get together with, ask “Is there anyone you’d recommend I should meet with as I’m getting starting and looking to learn more about the team/project/company?” This can help expand your network and give you steps towards relationships beyond just the people on your immediate team.