Formation of negatively charged C-60(-) was observed in the near-grazing scattering of hyperthermal (10-50 eV) neutral C-60(0) from a carbon-covered (monolayer graphite) nickel surface. Under these conditions the normal energy component of the scattered particle (0.3-1.5 eV) is of the same order of magnitude as the attractive potential well. We have measured both energy and angle distributions of the scattered C-60(-) and studied the electron transfer process by comparing the energy and angular distributions of the scattered negatively charged and neutral C-60 as a function of primary energy. The shifts observed between the angular and energy distributions maxima of the neutral and negative ion could be analyzed and explained in terms of image charge effects on the outgoing trajectory (deflection) and exit energy (retardation) of the C-60. The angular deflection analysis yield image charge barrier of 0.28+/-0.02 eV corresponding to a rather large "ion formation" critical distance of 12.9+/-0.9 Angstrom. We believe that this is the first direct observation of image charge effects in molecule/cluster-surface scattering.