I enjoy beer, wine, and cocktails. However if I'm hosting something I always make sure I have a decent alcohol-free option. Basically "Can I put you a drink?" "No thanks" "How about a cranberry and soda?"

Basically if they turn it down the first time, I won't offer it again and I will give them options that don't include booze so they can still have something, especially if there are going to be toasts.