which compound is good to use?
is there anything i should becareful of using a compound?
i have a buffer too so directions for using a compound?

 

Type of buffer, and condition or pic of paint will vastly improve our recommendation........

 

well i got some swirl marks. lots of minor scratches
simmoniz buffer.
i haven't polished my car since last year late october
and i got a show to attend so i need to polish
but i don't know whether or not its safe for me to use compound myself.

 

I don't think your buffer will have the oomph to polish out swirls. I'd recommend reading some of the great info on sites like autopia.org, autogeek.net, detailcity.org etc... on polishing. There are tons of options out there.... Good luck!