It largely depends on three things: Your weight, your experience w/drinking, and what you had to eat. I would suspect that if you are a young woman who weights about 100-120 lbs that two glasses of champagne would make you obviously drunk and four glasses would have you dancing on the table.
Go slowly and make sure you have trusted friends around you while you gain experience - they could make the difference between having a good time and being raped or arrested for DUI.
Go slowly and make sure you have trusted friends around you while you gain experience - they could make the difference between having a good time and being raped or arrested for DUI.