One Day at a Time. Wake up and tell yourself "I'm not drinking today." If anyone is curious as to why you don't want a drink tell them the same thing. If someone offers you a drink..."I'm not drinking today." Pretty simple really.
Only drunks will try to push drinks at you. Don't let them annoy you, just keep repeating "I'm not drinking today" to them. About the 3'rd time I repeat it I'm usually grinning and offer to explain what the simple sentence means... then I repeat it again. I like to annoy annoying people
Eventually they will figure it out for themselves. Oh and I stayed away from others when they were drinking for a couple of months...too much temptation.