First visitor from Google - is it possible to find out how the user got to my page?

Hello, I'm new to SEO. I've recently started gathering some basic analytics data for my website and noticed I got the first visitor who found my page through Google. Is it somehow possible to understand how? I mean, what were the search terms used or so? How do you guys discover how your web page can be found via search engines? Are you doing it manually or...?