Settings for outdoor photography using Nikond3100?

So, next week I'm oing to take pictures of my friends in the amusement park. There are going to be lots of rides and carnivals there and I want to take splendid photos using Nikon D3100. Could somebody advice me please on the ISO, aperture, shutterspeed and other things?

Set everything to Auto (or Programme) and let the camera do the thinking for you. 90% of your shots will be good.

I usually shoot outdoors with an f6-8, ISO lowest it will go (on my d5100 it's 100) if it's bright outside I would lower exposure compensation about -.5:) Put it on auto white balance and if you're on manual mode I would set shutter speed to 150-300