To tell the truth, the neck is born, and it is not necessarily long without plastic surgery. But it can make the neck look longer.

You can open your shoulders and sink, which will look longer.

And the walking posture will be very beautiful (as professional models do)

Besides, don't wear high-necked clothes.

Try to wear a round neck or

An open-necked coat

Exposing the neck and clavicle will have a good effect.