We have a wedding to go to in about 3 weeks, my BIL is getting married. Now I just have to make it through that without giving anything away, that might be hard since they're big wine drinkers. We got such a bad reaction to the news that #4 was coming along a few years ago that I'm not wanting to say anything about this little surprise for several more months.
At my SIL's wedding I saw that O'Douls was available. I asked the caterer, very discreetly, to pour me a glass in one of the beer glasses. I walked around and made sure everyone who might suspect saw me with that glass and I think I'm home-free! Maybe you can get one of the fancier bottles of non-alcoholic wine and sneak-pour yourself some of it? I know this sounds dotty, but I wanted to be absolutely sure I didn't steal any of the limelight from SIL. It seems to have worked!