Be on time.
Turn off your cell phone. Your full attention should be on your dining companion or you will give the dangerous impression that you think there is someone more important than him or her.
Don't drink alcohol. You want to be in full control of your faculties. Also, many employers frown upon it. If your companion insists that you have a drink, limit it to one.
Write a thank you note. It's always good manners to do that when someone takes you out. And in a business situation, it provides another opportunity to put your name in front of your prospect.
Don't order the most expensive item on the menu when you are being entertained.
At business cocktail receptions, hold your drink in your left hand to keep your right hand dry and available for handshakes. Hold food in your right hand with a napkin to keep your hand clean.
Before sitting at the table, wait for your host to sit first or for instructions to sit.
Don't smoke unless your companion smokes and/or gives you permission to do so.
Never reach across someone's plate to get an item. Always ask for it to be passed.
