Would you do a separate reintro day for alcohol (not with all three meals of course )?
I've got a few more days to go but need to plan my reintros around a wedding I'm attending next weekend and was going to reintroduce dairy (going to an Italian restaurant for dinner where I'd probably benefit from being able to have a bit of cheese) but if alcohol needs its own day then I'd probably prefer a glass of champagne to cheese.
You most certainly can. Also remember that you can't always trust your hunger signals while things adjust. But if you just can't eat anymore saving it and eating it as a mini meal is a great option. Your body will adjust.