Emotion is your Achilles heel. I've seen a good deal disintegrate when a seller took a buyer's comments personally. The buyer was going to remove a wall and combine the kitchen and dining room. The sellers had lived in the house for ten years and raised children there and were offended by how casually the buyers talked about tearing parts of it down. The sellers reacted emotionally and became unreasonable. Misunderstandings mounted until the buyers walked away.
For the best result approach all communications with buyers and buyer's agents professionally. If you are calm and clear about your wants and needs and reasonable about buyer requests you should be able to negotiate a win-win solution.