The "come-hither" motion is a gesture, often used in a flirtatious or suggestive way, that invites someone to approach. It can be described as a subtle, beckoning movement of the hand or head.

Here's a breakdown:

* Hand: The most common form involves extending one hand, palm up, and curling the fingers inward slightly. The hand is then moved gently back and forth towards the person being invited.

* Head: This could involve a tilt of the head, a slight nod, or a subtle raising of the eyebrow, accompanied by a suggestive look.

* Body language: The whole body language should be open and inviting, with relaxed posture and a slight smile.

It's important to note:

* Context is crucial: The "come-hither" motion can be interpreted differently depending on the context. In some situations, it could be considered rude or inappropriate.

* Cultural differences: What's considered appropriate in one culture may not be in another. It's important to be aware of cultural norms and avoid any gestures that might be offensive.

If you're unsure about whether it's appropriate to use the "come-hither" motion, it's always best to err on the side of caution and choose another way to express your interest.