to be selfish is to be motivated by concern for ones own interest this requires that one consider what constitutes ones self interest and how to achieve it, one cannot be concerned with one desire that of which one does not know.

https://podcasters.spotify.com/pod/show/axiomsofliberty0/episodes/EP-63-Isnt-Everyone-Selfish---The-Psychology-of-Pleasure-by-Nathaniel-Branden-e2knj0j