服务员，我需要菜单 besides you can say 我要点菜 ,then the waiter here will give you the menu. in Chinese, when you need to order the foods, you can just point out the dishes you want from the menu, and show them to the waiters. on the other way, at some restaurants, you should go to the cashier desk to take an order.

Can I have the menu? 有菜单吗？

服务员，您好，我要点单。 服务员，您好，可以给我看一下菜单么？