1) Casually sociable 2) Cracker-barrel 3) Down home 4) Familiar 5) Friendly and unpretentious 6) Friendly or neighborly 7) Hardly urbane 8) Homespun 9) Like corn-pone humor 10) Like ma and pa kettle 11) Low-key 12) Rural 13) Rural, sociably 14) Simple and unpretentious 15) Sociable 16) Unstudied and rustic 1) Cornfed 2) Downhome 3) Homespun 4) Informal 
[adj] - very informal and familiar
adjective very informal and familiar; `a folksy radio commentator`; `a folksy style`
friendly or neighborly; sociable. · very informal; familiar; unceremonious: The politician affected a folksy style. · belonging to the common people, esp. in regard to a conscious use of mannerisms, speech patterns, attitudes, etc.: folksy humor.