May a Muslim celebrate with friends or colleagues where alcohol is served?
Yes, as long as he does not drink himself and is not drawn along. Someone who stays firm can even be a good example to others.
Alcohol is forbidden for Muslims. Yet alcohol is almost everywhere, in the student bar, at the office party and at friends’ celebrations. Anyone who avoided every place where people drink would have to withdraw almost completely from social life. Islam does not ask for that.
What matters is who influences whom. If a Muslim attends a celebration, does not drink and keeps his principles in a friendly way, it does him no harm. But if he lets himself be carried along, drinks to be polite or slowly moves his own limits, then it is wrong.
A quiet example often speaks louder than any sermon. Someone who drinks water or juice all evening and calmly explains why when asked usually earns respect. Some people then begin to think for themselves. In this way a believer changes his surroundings for the better instead of being changed by them.
At other people’s events you are a guest. You do not have to forbid them to drink or start an argument. You may care about them without judging them. At his own celebrations, however, a Muslim does not serve alcohol but offers other drinks instead.
Anyone who notices that he is growing weak should avoid such places. Your own firmness is the condition that makes being there a good thing.