(Inc.) — Every entrepreneur spends some time haggling, whether it is with customers, suppliers, investors, or would-be employees. Most business owners are street smart, and seem to naturally perform well in negotiations. You probably have a trick or two—some magic phrases to say, perhaps—that can help you gain the upperhand. But, often, the moment you get into trouble in a negotiation is when something careless just slips out. If you are new to negotiation, or feel it is an area where you can improve, check out these tips on precisely what not to say.
1. The word “between.” It often feels reasonable—and therefore like progress—to throw out a range. With a customer, that may mean saying “I can do this for between $10,000 and $15,000.” With a potential hire, you could be tempted to say, “You can start between April 1 and April 15.” But that word between tends to be tantamount to a concession, and any shrewd negotiator with whom you deal will swiftly zero-in on the cheaper price or the later deadline. In other words, you will find that by saying the word between you will automatically have conceded ground without extracting anything in return.