How to order and drink a good wine?

My husband and I have been treated to a very upscale exclusive restaurant. One that we would never be able to afford on our own. We are going tonight, for my birthday. How do I order a good wine? I know that white wines go with seafood, and red wines with meat, but that's about the extent of my wine knowledge. What if I order steak and lobster? What kind of wine goes with that? Am I supposed to swirl it in the gl, smell it, comment on it's bouquet (whatever that means)? I am totally lost. Please help! I have a dinner tonight with very important people that I want to impress.