In Thailand it is usually served cold with milk and fruit salad, or served hot with ginger syrup.

泰国的豆花，冷的会加牛奶和水果色拉，热的会加姜糖浆。

youdao

If you choose to add ginger, you could also add very small pieces of stem ginger in syrup (available at Asian markets and in the Asian foods sections of some supermarkets).

NPR: Holiday Sweets: On the Road (and in the Mail)

Found at Rouge in MGM Grand, the Ginger Bulleit combines Bulleit Bourbon, which dates back to 1800, with fresh muddled lemons and simple syrup.

FORBES: Boardwalk Empire Inspires Prohibition Era Themed Cocktails