Drink Plan

I am wondering how I use this form to log my urges while in the company of others. Pretty embarrassing pulling out this form to record urges. Going to the bathroom every time an urge hits would also be embarrassing. How does this work? I would think this whole thing is kind of a Private matter with myself, right? Just am having a hard time imagining this in a social setting. I sure hope I can find the answer to this question on the website. I have a hard time navigating the site.