Employee advocacy can take many forms on social media, from content sharing and hashtag campaigns, to sharing job openings and providing behind-the-scenes glimpses of the company’s culture. The concept draws parallels with the Net Promoter Score, or NPS. This metric is used in marketing to assess the likelihood of customers recommending a product or service. But in the case of employer branding, it’s your employees who can help elevate your brand, not your customers.