Use 'draw off' when referring to the action of taking liquid out of a larger container.

Physical Action

'Draw off' can imply a careful, slow process to avoid spills or mixing.

Gradual Process

The phrase can be used when liquids are removed without directly touching them, like with a siphon.

Use 'draw off' to describe a deliberate, often strategic, movement away from a place.

'Draw off' suggests a careful or planned withdrawal, not a hasty escape.

Use 'draw off' when someone intentionally shifts focus from one thing to another.

'Draw off' can imply a delicate way of diverting someone's focus, not abruptly.