I found jobs from newspaper and website such as jobsearch and etc. How do i ask in proper way? what do i have to say? I know that this is so easy but actually its not. Anyway, I hope there is someone can help me please.

What do i have to say?
what do i have to ask? ofcourse about the job but should be more, i mean how to ask in proper way.
what necessary information i need to know?

in jobstreet case, you can just apply online, that is if you have already prepared your resume. as for the newspaper, you could always start your phone call with "good morning, my name is keele, i am calling in regards to your vacancy advertisement on the newspaper the other day. I would like to have more info on the job."

i believe this is a good way to start off the conversation.