As you'll see in this video, unless you have a buyer's agent remember that the agent works for the seller. Make a point of asking him or her to keep your discussions and information confidential.
Listen to your real estate agent's advice but follow your own reason on deciding a fair price.
Calculating your offer should involve several factors: what homes sell for in the area, the home's condition, how long it's been on the market, financing terms and the seller's situation.
By the time you're ready to make an offer you should have a good idea of what the home is worth and what you can afford.
Be prepared for give-and-take negotiation which is very common when buying a home. The buyer and seller may often go back and forth until they can agree on a final price.