There were many successful milestones that researchers had passed achieving 'humanoid robots', that are little closer to humans but not at whole. Although, the expectation level of the intelligence of these new systems is still unknown, it can be fairly assumed that reaching a goal at least up to an intelligence level of a human baby, may be a big success. In order to be more close to the human, it is necessary to analyze the behavioral patterns of humans in order to apply them for the AI machines. Humans being emotional creatures have feelings on their own as well as many towards the others. These emotions get into effect in all the dealings they performed. Some of the topics that this research project discusses are, is there anything these feelings can do to improve robots, will there be any change to robot by having them, etc. In this research work authors are analyzing some 'face emotions' based on 'personal space' to enhance the human-robot interactions in ubiquitous environments.