No matter how many rounds of interviews you aced or the number of glowing recommendations your former co-workers and employers gave on your behalf, the first day at a new job is stressful.

During the course of the day, you’ll probably forget all your co-workers’ names, ask for directions to the restroom (at least) five times, and face a few glitches with your computer at your new desk.

But perhaps one of the most stressful, and least discussed, challenges is not looking like such a newbie. Let’s face it: nobody wants to look or come across as helpless in the office. Of course, fighting with your nearby printer and the back-to-back orientation sessions may be dead giveaways; however, the way you dress on your first day can read more stylish than S.O.S. Dress too formal and you’re a total department rookie, but too casual will look unprofessional.

Want to find the perfect balance? Read on for these six men’s fashion tips.

Do your research

Whether you’re changing career paths or switching companies, one thing’s for sure: each office has their own work culture and an unspoken dress code.

Sure, most bankers are restricted to a conservative suit while recording studio execs are bound to sport more casual ensembles, but these generalizations do vary based on company.

Instead of calling human resources to learn all about the sartorial rules of the office — which is a step too far — think back to your slew of interviews.

Was your new employer sporting a formal blazer or sheath dress or was the vibe more relaxed with flannel shirts and jeans? Use your boss as your style role model for the first day of work, but as a general rule of thumb, your outfit should be a smidge more formal than his or hers.

It makes sense: If he or she overlooks several employees, your supervisor is bound to have a little more leeway with everything from hours to outfits.

Plus, a more polished look tells your boss that you are professional and ready for whatever challenge comes your way.

So how do you take your look up a notch on the formal scale without looking too stuffy? Sport some business casual pieces.

If your boss was rocking a cool leather jacket, wear that wool herringbone blazer you bought a few weeks ago.

As for pants, swap out your boss’s jeans for a crisp pair of khakis. But what if your new employer was dressed to the nines during every round of interviews?

Copy his look with a conservative suit and tie.

Pull out your dress shoes