Practise pro bono COACHING

Pro bono publico is a Latin phrase for professional work undertaken voluntarily and without payment or at a reduced fee as a public service. It is common in the legal profession and is increasingly seen in architecture, marketing, medicine, technology, and strategy consulting firms. Pro bono service, unlike traditional volunteerism, uses the specific skills of professionals to provide services to those who are unable to afford them.

Pro Bono Publico is also used in the United Kingdom to describe the central motivation of large organizations such as the National Health Service, and various NGOs, which exist "for the public good", rather than for shareholder profit.
Source: wikipedia.org