I'm going to a wedding reception tonight. It's DH friends and I'm not really going to know anyone there. I have no clue what to wear! It's in a marquee on a farm. My sister in law (who is now not going as she isn't very well) was going to wear a dress and white trainers. Is this acceptable? I'm just not sure. In a panic now as I just don't have any idea what to wear! Invite says don't wear stilettos as flooring isn't great. Please help!!