Classes are Beginning...
And so I just barely have time to write this:If you have the time to do so, get involved in any projects around.
By having your fingers in as many pies as you can, you improve your own chances of good research collaboration. Also, you get to a point where people start owing you favors. Last, but not least, additional projects always look good on resumes, CVs, and applications. So do yourself a favor, and get involved.