Near the equator the crescent lies on its back like a bowl. In Scotland it stands upright like a C. Nothing has tilted but you.

The lit side always points at the Sun; what changes is the angle the Sun's path makes with your horizon. Near the equator that path is close to vertical, so an evening crescent sits directly above the Sun and is lit from below. Hawaii calls the result a wet moon, and has a story about it holding water until it tips.