Facebook is the social network that doesn't need an introduction. It is arguably where social media marketing began. Facebook hasn't lost relevance with the development of other social media networks, in fact, it has a lot to offer specifically to businesses (on Facebook pages) unlike on other social platforms.
Benefits of Facebook Marketing:
1. Access to Facebook insights
2. Facility to run contests
3. Ability to appoint page admins/managers
4. Facebook tabs for business descriptions
5. Facebook ads and offers
Use those features, since you have access to them.
Apart from maximizing on the obvious benefits (mentioned above), there are 5 simple things that you could do to make a large impact on Facebook.
source:smallbiztrends.com