With energy prices at least roughly flattening out, and with the labor market continuing to strengthen, those are probably two of the main reasons people are starting to get more optimistic.
The drop in continuing claims could be a sign that the unemployment rate could start drifting downward.
It's a good sign that the consumer has some momentum going into the start of the year and that probably reflects the fact that the labor market is continuing to improve, albeit modestly. It's a positive for economic growth this year.