code: private void onFacebookBtnClicked() {
  		// defaults found in:   com.socialize.networks.facebook.BaseFacebookFacade
  		String[] permissions = {"email"};
  		FacebookUtils.linkForRead(this, new SocializeAuthListener() {
  			@Override
  			public void onCancel() {
  				Toast.makeText(GetEmailActivity.this, "Facebook login cancelled", Toast.LENGTH_SHORT).show();
  			}
  			
  			@Override
  			public void onAuthSuccess(SocializeSession session) {
  				getFaceBookUserEmailetc();
  			}
  			
  			@Override
  			public void onAuthFail(SocializeException error) {
  				handleError(GetEmailActivity.this, error);
  			}
  			
  			@Override
  			public void onError(SocializeException error) {
  				handleError(GetEmailActivity.this, error);
  			}
  		}, permissions);
  	}
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