When you enter a room full of people you don't know, take stock of what's going on, then walk up to a group and introduce yourself. You can't network if you're a wallflower. Hone your communications skills. You must be a good listener in addition to speaking and writing well. Persevere and be patient.
Timing is everything.
Get the right skills required for your next job before you need them - then you'll be positioned when the time is right. Recognize that it takes time to gain the experience to get to and perform at the top. You won't be there five years after you get out of school. Attitude is the key. Keep a positive perspective and look for the good things in any situation.