It seems facebook rules are not working.
1. Use a real domain (such as http://audiencetargeting.liferay.org.es/)
2. Set up facebook login (see steps here: https://dev.liferay.com/discover/portal/-/knowledge_base/6-2/liferay-audience-targeting-rules)
3. Define a segment for users who like facebook at liferay
4. Use the User Segment Display to display a different message for users who like liferay at facebook
5. Log in as another user using the facebook login and like liferay on facebook. --> You should see the message when you like the facebook page only