This might seem like a strange question but I don't normally go pubs/parties and will have to attend work's Christmas party this year. Its a lunch at a venue that we'll have exclusive use of. Not a big drinker and would occasionally have a glass of wine, cider or beer at the weekend. Worried that I'll be judged on that first drink and wonder what people normally have pre- meal or with lunch. What's the protocol and what's trendy these days?