1. Reciprocation : The rule for reciprocation “says that we should try to replay.
2. Commitment and Consistency: most people never make that purge and hardly ever unsubscribe.
3. Social Proof: One method we use to determine correct behavior is to find out what other people think is correct.
4. Liking: Physical attractiveness creates a halo effect and typically invokes the principle of liking.
5. Authority: In social media, authority is less about titles and clothes than about virtual trappings.
6. Scarcity :Laura Roeder has rather famously made scarcity a centerpiece of a signature technique.
you have to update your social media profiles with interesting and related info on daily basis. keep engage your follower or fans is best way for social media optimization.