sociably

from WordNet (r) 3.0 (2006)

sociably
    adv 1: in a gregarious manner [syn: {gregariously}, {sociably}]
    2: in a sociable manner; "sociably, the new neighbors invited
       everyone on the block for coffee" [ant: {unsociably}]

from The Collaborative International Dictionary of English v.0.48

Sociably \So"cia*bly\, adv.
   In a sociable manner.
   [1913 Webster]