Question tag

Hi

Can you help?

Are the tags correct here?

1.Do not sit here, will you?

2.Come home early, will you/won't you?

3.Please save my child, won't you?

4.Do not drive that fast, will you?

5.Do not ingore this child, will you?

6.Post this letter, won't you/will you?

7.Stop smoking, will you/won't you?

I'm not sure with the tags in 2, 6, and 7. I think either of them can be correct depending on the context.