The one that struck me the most was
Know what’s (really) going on. Come out of your corner office and spend time in the trenches.Through all the time I have been in HR I have met alot of HR people who have not been out of their offices to spend time in their plant, their call center, or on the second shift or third shift, or wherever. With the advent of email and instant messaging it has become easy to "manage" from your desk. But I have always found that being seen, being accessible and being there at the moment is often the best way to know what is going on, in the business and in the lifes of employees. Walking by and talking to someone may prompt them to tell you something that they may not have wanted to come to your office for, or did not want to put in an email. Plus, if you are in a 24 hour operation, spending time with folks in their time frame will help you realize that they are much more talkative during a break than they are at the end of their shift.
So if you want to be more effective in your HR job and want to know what is really going on, get out and spend some time with employees. Go to them instead of having them come to you.