It is not easy to convince people to buy things from the internet.simple skills wont work.You must offer something in return to get people to buy. The following steps may help you to get a good sale from your site. Go ahead and give it a try.
1. Most people like surprises because it's a change of pace from their routine. Tell your prospects that they'll get a surprise free bonus for ordering.

2. Most people want life to be easier. Give your prospects easy ordering instructions, easy product instructions, etc.

3. Most people want to feel secure and safe. Tell your prospects that you have secure ordering and a privacy policy.

4. Most people want to receive compliments for their achievements. Give your prospects plenty of compliments for them considering your product.

5. Most people are curious about things that could affect their current lifestyle. You could use words like "Secret" or "Confidential" in your ad.

6. Most people want to invest in their future. Tell your prospects to "invest in your product" instead of "buy our product".

7. Most people want the latest and newest things in life. Use words and phrases in your ad copy like "New", "Just Released", etc.

8. Most people want to solve their problems. Tell your prospects what problems they have and how your product can solve them.

9. Most people want to make the people around them happy. Tell your prospects how happy their friends or family will be if they buy your product.

10. Most people want to get over obstacles so they can achieve their goals. Tell your prospects which goals they'll achieve by ordering your product.
Best of luck.

Have a nice day.