A large portion of the people that I work with have recently moved here. The easiest way to get to know people is when you have something in common to talk about. So my suggestion would be to just go out and do the things you love to do, you're bound to come across others that share that interest whom you can spark up a conversation with. There are a lot of events, a good parks system, and a number of community activities. If you are into arts I believe there is an Arts Festival going on right now in Holly Springs. I hope this was of some help.
Best of luck to you,