simile

an empty person with no regular emotion , depressed , trying to keep up with life , can fake any emotion when needed to satisfy people , can imitate peoples feeling , understands people and background reasons though actions

hes a simile guy.
only simile people can understand you.
as fake as simile sincerity.

Similism

a kind of action that benefits or is in the interest of all parties involved. From the Latin "simul", meaning "together". An alternative to egoism or altruism.

John's similism was obvious when he refused to give up until he found a solution that everyone was happy with.