My advice at your workplace, regardless of the job or pending employment situation is always the same: Kick ass at your job. You are there for same eight hours regardless if you slack off or not. Workplace studies show that most people do about three hours of actual work a day. Double that to six and you a superstar. Even if your boss doesn't recognize your efforts, your co-workers will. And establishing your professional network can pay enormous dividends.
You know those nice severance packages they hand out when companies downsize? They don't always hand them out.
I've mentioned this story before, but it is a good one. I work in consulting, and there is a lot of pressure, both spoken and unspoken, to bill a lot of hours. Hence there is a lot of pressure, mostly unspoken, to spend lots and lots of hours at the office. So lots of people did. But the people who kicked butt, the people you wanted on your team, the superstars, pretty much all left at 5:00. They simply worked during the day instead of checking and answering email every 20 minutes. They were also the ones who could and did turn down shitty projects, and otherwise had the most control over their own fate. If there is a nice package about to be handed out, those are the folks who are likely to know about it first. And who knows? If you are a top performer they might come around and ask your opinion who you can live without. Perfect time to volunteer to take one for the team.