How To Determine Ring Size Without Asking

I have a guy am dating at the moment we met two months ago and I live in his house not because I want to but because he wants me to, he does not hide anything from him to his bank, phone and some other things but he nag at me a lot and we do fight over money cause we do the same work.. He is a protagonist who is more acted upon than acting. But Strzok couldn't help that smirk.