  We present computer simulations of the vapour-nematic interface of the
Gay-Berne model. We considered situations which correspond to either prolate or
oblate molecules. We determine the anchoring of the nematic phase and correlate
it with the intermolecular potential parameters. On the other hand, we evaluate
the surface tension associated to this interface. We find a corresponding
states law for the surface tension dependence on the temperature, valid for
both prolate and oblate molecules.
