You need your certificate and 10 hours solo for pax endo. You'll already have 5 to get your certificate. Just another 5 after and you can take pax. Talk to your instructor. There is a small theory component about how to brief your pax, handle nervous pax and deal with pax who fight for the controls.
Nav endo is 10 hours dual nav and 2 solo. You read a map, plan route, estimate fuel, fly route and make radio calls.
I doubt you can take anyone up before you get your certificate. You can always ask your instructor though!