I'm very new with many questions. I've scoured the book and didn't see any mention of popcorn. Could anyone tell me if this is an OK food for a Flirt?

:)

popcorn is a whole grain. : )

Popcorn should really be bought organic, as should any corn, if you are concerned at all about GMOs, and I would definitely stay away from the microwave as was mentioned. As far as flirting goes, that's really a stage to try new foods and to eat as many non-animal and whole foods as you can integrate into your life at that stage. So, there aren't really foods that aren't 'okay' per se, it's just about experimenting with a lifestyle to see how it works for you, and hopefully you will find that it makes you feel healthier, in many ways.

Popcorn is a brilliant snack assuming you do not smother it unhealthy processed oils.  some seasoning and a light oil to stick it on there is great.  Or some Earth Balance buttery spread, yum..

I love it sprayed with a water mister and sprinkled with some nutritional yeast and onion salt. 

You gotta sprinkle some nutritional yeast on it! So good and it kinda taste likes butter. I actually cook in in a little oil and then add yeast, chinese 5 spice and a little xtra cinnamon. VERY GOOD!