WASHINGTON (AP) — When President Joe Biden meets Chinese leader Xi Jinping on Wednesday, there will be no such thing as a small detail.

How they greet? If they eat? Where they sit? Will there be flowers? Bottled water or in a glass? “Pretty intense,” senior administration officials say of navigating delicate protocols.

Any encounter involving the president and a foreign leader means managing tricky logistics, political and cultural, and every occurrence or utterance can potentially jolt the world order. But few nations are more attuned to etiquette than the Chinese, and Washington and Beijing’s often-conflicting interests might mean the seemingly trivial becomes meaningful.