With the anxious feelings of going into an interview, it can be easy to err on the side of not having the best manners. It’s not about manners like keeping your elbows off the table, but about good etiquette. In a job interview, it can be easy to make silly mistakes that could offend someone and, in turn, cost you the job. Here are some good ideas to help you keep your interview manners in check.

Show up early. Being late for an interview will make a lasting impression, but not a good one. Especially if you are not sure of the location, it is better to leave in plenty of time to find the right building and be aware of possible traffic jams. If you arrive more than 15 minutes early, simply wait outside or in the car before entering the building. It could be terribly awkward if someone has an interview before you and you’re still waiting in the lobby. This is true for both you and the other person. Be early, not less than 5 minutes but not more than 15 minutes. Think of it this way: if you’re late, it means to your potential employer that you can ALWAYS be late. Getting to work, and on time.

Have a great handshake. You don’t have to put on the jaws, but you don’t have to “dead fish” your potential boss either. Your handshake makes a good first impression, so make it count. A firm and confident handshake is the way to go.

Everyone deserves respect. You don’t just need to impress the person you’re interviewing with. It is very possible that the receptionist or someone sitting right next to the waiting area will participate in the decision making. Receptionists are often asked what their first impression of you was, so treat everyone with courtesy. You really never know who is watching.

Never be a no-show. If you find that you really aren’t interested, call to cancel. Don’t waste everyone’s time by just not showing up. You never know in your career who you will have to work with in the future, so it is better not to make enemies before they meet you.

To be prepared. Do your research and learn something about the company you are interviewing with. If you know something about the company, it shows interest and gives you a huge advantage. Don’t waste time interviewing if it really isn’t a company you can’t work for. Also, bring all your reference information, resume and portfolio. Make that preparation really work for you.