Do not have iCloud or Find My iPhone

I've misplaced my iPhone and must find before it dies! Do not have iCloud but found out I can install it on my PC. Once I've done that, can I enable Find My iPhone from there? Never had it installed before losing the phone.

Try calling your phone (as long as its not on silent it should help) if that doesn't work try retracing your steps or get a friend to come over and help you look.