Pick up and Shape up

Pick up verb - To acquire complete knowledge, understanding, or skill in.

Shape up and pick up are semantically related In some cases you can use "Shape up" instead a verb "Pick up".

Shape up verb - To take on a definite form.

Pick up and shape up are semantically related in fix topic. Sometimes you can use "Pick up" instead a verb "Shape up", if it concerns topics such as improve, revive, make or become better, correct a situation.