Pagan: A member of any Neopagan or Pagan Reconstructionist religion or spiritual path (whichever term you use). Included among Neopagans would be any new religion made up based on Paleopagan roots or mythological influences, such as Feri, Reclaiming, or the various flavors of Wicca*. Included among Reconstructionists would be Asatru, Celtic Recon, Hellenic Recon, and similar.
Pagan-friendly: Hopefully self-explanatory but includes people who follow Abrahamic religions/spiritual paths while incorporating Pagan elements.
(This community uses the definition of Neopaganism posited by Isaac Bonewits in his essay here. His other definitions are useful for setting conversational parameters as well.)