How to approach manager about going from contract to permanent?

I'm currently working a contract position; I'm about a month and a half in. Browsing my company's job page, I found a handful of positions open for the role I'm presently doing. What would be the best way to go about approaching my manager to express my interest in one of these positions?

usa jobs
usa jobs resume
usa hotel jobs
usajobs
usa jobs federal government
usa job in ksa
usa jobs
usa jobs login
usa jobs gov
usajobs.gov
www.usajobs.gov
usajobs.com
usajobs
usajobs.gov official