Well, this seems like a good chance to pad my post count
The only thing you really need to do is avoid cruising at the same RPMs for continuous periods of time. This means no cruise control and constantly varying your speed and/or RPMs during highway cruising.
Ideally no WOT or redlining before ~500 miles or so. But it probably won't be catastrophic if you do. I routinely ran the RPMs up to 5500 RPMs in every gear I could during the break-in period. I ran them up gradually like on a dyno though - not full throttle like a drag strip. She still runs like a top 92K miles later