 Kirk and Khan never meet face to face during the movie. All of their  interaction is through viewscreens or communicators. In the  directors commentary on the special edition DVD, mention was made  of the difficulties both William Shatner (qv) and  Ricardo Montalban (qv) had in displaying proper emotions to lines  being fed to them by a script girl, so it might be assumed that  Shatner and Montalban did not interact face