The capacity to be aware of, control, and to handle interpersonal relationships judiciously and empathetically.

(Oxford Mindfulness Centre)

The ability to monitor one's own and other's feelings and emotions, to discriminate among them and to use the information to guide one's thinking and actions. 

(Yale)   

Self - Awareness 

Self - Regulation 

Motivation 

Empathy 

Social Skills 

Emotional Intelligence