How to make eyes pop in outdoor photography?

I have a Nikon D3100 and I just taking pictures for family so I am a beginner. I have a sister who has extremely light blue eyes, and she is light sensitive. She wants outdoor pictures during the day, and when I have done pictures for her in the past, the pictures result with her eyes as dark slits and you can't even see the beautiful color of her eyes. When i have used flash in the past it just gives them red eye or makes their skin look pasty and it darkens out the background. With it being a very sunny day, how do I get great detailed pictures with clarity in the eyes?

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What are some NIKON dslr cameras under $300?

I own Nikon D7000 but i dont like changinf lenses outside because dust gets inside the camera. So I need to buy a cheap new or used dslr just for that reason, I dont care if it's lower quality than the D7000 or if it's 20 years old, I just need a DSLR.
Please give me a list.

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Nikon gps: can I print wifi from this device?

Hello I have an event coming up and I need to take pictures and print them directly from my camera to the printer or camera>laptop>printer but I want to do this wireless without having to keep plugging the USB up to the printer and printing the themes. Here is the device right here if this doesn't work please recommend what will work for me.http://www.amazon.com/gp/product/B008YLD7XE?psc=1&redirect=true&ref_=ox_sc_sfl_title_1&smid=A1BAB71WEAH6D9

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