Great advice from Anna and the same advice I received from Anna and Dee only a few days ago and they are so right,you don’t need to explain anything to anyone.
In addition I believe in early recovery this can be one of the things that is daunting for a lot of people so some other suggestions below in case they are of help.
Take the car when you can (if you drive** always a solid reason not to drink.
You are not drinking because you are concentrating on your health (absolutely not a lie)
You have an early start, work commitment or important thing happening the next day and you want a clear head (also not a lie, your imporant thing is your sobriety!)
You are just fed up of drinking, have done it a lot for a long time and have decided to do things without it (also not a lie)
All the best