I went to a wedding at a day shy of one year sober. When you get there, grab a nice pellegrino with a lime from the bar. At the table, put your wine glass face down....they will know you are not drinking and won't fill it (and usually remove it). I was careful always to look at my hands when I grabbed my drink off the table (since there were so many wine and champagne glasses around me). I had fun and no problem!