But 2-3 at say friday night will do you no damage and help you unwind. Just make sure you take in plenty of water that day and the next as the alcohol will act as a mild diuretic.
Then there are all the protein synthesis issues that some are always bringing up, and while they may be valid for some i personally always cared less and allowed myself 2-3 Guiness on some weekends and fealt great.
What can i say, it made me happy. And when i was happeir and more unwound my workouts were much better, so it wall all good.
Yeah, there is no problems with a few drinks every now and then. Even getting drunk isn't going to really going to do anything drastic. You will just weaken your muscles for a day or two and muscle growth will decrease.