Flattering the seller may not always be the best approach when buying a used car. While building a rapport and being polite can be helpful, the main focus should be on evaluating the car's condition, verifying its history, and negotiating a fair price. Here are a few tips for buying a used car:

1. Do your Research: Before you start looking at cars, research different models and prices. This will give you a good idea of what to expect and avoid overpaying.

2. Get a Vehicle History Report: Obtain a vehicle history report to check for any accidents, title issues, or outstanding loans. This report provides valuable information about the car's past.

3. Inspect the Car: Carefully inspect the car for any signs of damage, wear, or mechanical issues. If possible, take the car for a test drive and have a trusted mechanic inspect it as well.

4. Consider the Title: Ensure that the title is clear and that the seller has the right to sell the car.

5. Be Objective in Negotiations: When discussing the price, focus on the car's condition, features, and market value rather than relying solely on flattery. Be prepared to walk away if the seller is not willing to negotiate a reasonable price.

6. Get Everything in Writing: Before finalizing the deal, make sure all agreed-upon terms, including price, repairs, and warranties, are in writing.

7. Trust your Judgement: Ultimately, trust your judgement and instincts. If you have any doubts or concerns about the car or the seller, it's best to walk away and look for other options.