The purpose of this study was to examine the effects of vertical dimension (sitting or standing) on personal space, and to obtain information on the use of color boards. The latter was concerned with considering the utility of colored communication board while interacting with a physically disabled person of linguistic impediment. A sitting position occupied less personal space compared to a standing one. Brown-colored boards encouraged students into the narrowest personal space and gave them a feeling of """"settling down"""". This suggested that color had a specific meaning in communication through colored boards.