Facebook is where people interact with each other, and defining meaningful social interaction works as a north star to increase engagement. In FB, interaction happens when someone responds to content with likes, comments, and shares. Meaningful social interaction can be between the creator and the viewer or between two viewers. I will look into four dimensions:  Reactions versus comment  Comments: insightful versus generic Frequency of interaction  Follow-up interaction, like dm on messenger  Now, I will use data science to calculate the score on each of the above points to calculate meaningful social interaction.