  We demonstrate a left-right asymmetry control of the photo\-electron angular
distribution in multi\-photon ionization of Li atoms by a bichromatic laser
field. By delaying the fundamental (780 nm) and its second harmonic relative to
each other in steps of 130 atto\-seconds, we can vary the relative phase
between the two laser fields with sub-wavelength accuracy and thereby steer the
ejected electrons. Good agreement is found between the measurements and
calculations at the appropriate intensities of the two harmonics.
