Saving players choices

Hello,
I am totally new, I begin my first story, which will be very short (no more than four passages).

In the presence of "someone", the player will have to take on one of two possible attitudes.

I would like to know how to save players choices in order to have an online kind of "opinion poll" ?

Also would like to know how you can allow the player to write something (I would like to save online as well) ?

Thank you,
Rom.