If you need to lie to them, are they really your friends?
And, sitting in a hotel bar with 11 days sobriety - wow, I never could have gotten through that.
I think that early sobriety is a time for huge change. I say this over and over again, but it's so important. If you were used to sitting in hotel bars, maybe that needs to change. Why not hit the gym at the hotel, or do some sight seeting instead?