From Office Snapshots on Pixar Headquarters,

If a building doesn’t encourage [collaboration], you’ll lose a lot of innovation and the magic that’s sparked by serendipity. So we designed the building to make people get out of their offices and mingle in the central atrium with people they might not otherwise see.

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Here are a few things to help create that ‘Pixar feeling’ in your office:

1. Be intentional about designing for collisions and unplanned collaboration – rather than using managerial force.
2. Use the office space to remind employees why they work for the company.
3. Make the office fun and a place employees want to work, rather than have to work.
4. Allow employees to express themselves through their workspaces.