If you're going to Kingswood then walk it, it's like a 10-20 min walk depending on how fast you walk. And there will be heaps of people walking either follow them, or, go this way:
near the bus stop there's a set of lights, cross it, and keep walking left [it's a straight path, no turns or anything]
when you reach kingswood park you'll find a path [it's sort of diagonal], follow that, and then on the other side, you'll find Kingswood campus
If the bus is there, or you are tired etc then catch it, but don't bother if it's not there, sometimes they take forever to get there.
If you're going to Werrington North and/or Werrington South, catch the bus because walking it would take longer, and it's lol i walked it once...not a good idead >.<