  In the spirit of the generalized holographic conjecture, we explore a
relationship between the bulk and boundary properties of non-interacting
massive Dirac fermions living on a flexible surface, such as a sheet of
graphene. We demonstrate that the boundary correlations can mimic those
normally found in the system of one-dimensional interacting fermions, a
specific form of such phantom interaction being determined by the bulk
geometry. This geometrical interpretation of the boundary interaction effects
offers a new insight into the possible origin of the more sophisticated types
of holographic correspondence and suggests potential ways of visualizing
'analogue holography' in the experimentally viable environments.
