  We use the results from a recent investigation of hard parton-parton
gravitational scattering in the ADD scenario to make semi-quantitative
predictions for a few standard high-ET jet observables at the LHC. By
implementing these gravitational scattering results in the Pythia event
generator and combining it with the Charybdis generator for black holes, we
investigate the effects of large extra dimensions and find that, depending on
the width of the brane, the relative importance of gravitational scattering and
black hole production may change significantly. For the cases where
gravitational scatterings are important we discuss how to distinguish
gravitational scattering from standard QCD partonic scatterings. In particular
we point out that the universal colorlessness of elastic gravitational
scattering implies fewer particles between the hard jets, and that this can be
used in order to distinguish an increased jet activity induced by gravitational
scattering from an increased jet activity induced by eg. super-symmetric
extensions where the interaction is colorful.
