Infrared linear dichroism has been employed to explore the orientational "ordering" of n-octadecyltrichlorosilane (OTS) on a silicon attenuated total reflection crystal as a function of coverage. Although absolute measurements of the alkyl chain orientation are difficult, changes of orientation can be detected as the coverage increases (with time), from submonolayer to monolayer. It is shown that the orientational ordering, as judged by the dichroic ratios of nu(as)(CH2) and nu(s)(CH2) bands, increases significantly as monolayer coverage is reached.