What is the meaning of Picking?

present participle and gerund of pick

A gathering to pick fruit.

Items remaining after others have selected the best; scraps, as of food.

Income or other gains, especially if obtained in an unscrupulous or objectionable manner.

Something picked or pulled out.

The act of making a choice; selection.

The final finishing of woven fabrics by removing burs, etc.

The removal of defects from electrotype plates.

Dabbing in stoneworking.

Source: wiktionary.org