Agreed with 1999. If they go past the clear, you won't be able to just buff/polish them out.
If they're superficial though, you may be able to buff them out with a good buffing compound, and then a good polishing compound. This can be pretty difficult to do by hand, so I'd recommend using a random orbital buffer with a buffing pad and a polishing pad (for the respective compounds). Be sure to wax the area after buffing and polishing if you want to avoid swirl marks!!