Walk by Patrizia’s on a weekend evening, and you’ll probably see a large number of people outside. Most of those people will be in big groups, and a lot of those groups will be there to celebrate a birthday. Patrizia’s is a very big birthday-dinner destination in Williamsburg because A) there’s plenty of space, and B) this place does a $50 family-style prix fixe that includes unlimited wine. The red-sauce Italian food is mostly pretty decent, and you’ll get the opportunity to wave your napkin in the air when everyone sings “Happy Birthday.” Whether or not you have a reservation, there might be a wait - but the host will pour you free wine to drink while you hang out.