Scientific Experiment

So, for school I have to do a survey about genetics and see how genetics work and stuff.
Anyways, I just need to know the following from 7 people:

Can you cross all of your fingers together?
Can you roll your tongue?
What color are your eyes?

Thanks for the help in advance!

Yes, yes, Blueish.

what like cross every finger with every other finger?

If so

Yes, Yes, Hazel. Otherwise choose brown or green, they are somewhere in between.

Not sure what you mean, yes, blue.

1. No.
2. Yes.
3. Green Brown. It's a mix between those.

Yes,
No,
Blue.

Woah, thanks guys, didn't think that would work.

Yes
Yes
Brown

Not anymore due to injury
Yes
Brown

Edit: Ugh, just realized this was old.

Yes
Yes
Green

Yes
No
Brown

Yes
No
Brown

How can you experiment with this information?

Anyway, yes, yes and blue.