General Discussion
As a relatively new technology, interactive gestures have become an indispensable element in gamified mobile marketing. In the current paper, we examine how mobile hand gestures interact with visual presentation and reward setting to enhance consumer enjoyment of mobile marketing games. Two types of gestures are compared based on the different sensor technologies. Surface gestures, based on touching-sensor technology, are more direct and sensory-related (Karam and Schraefel, 2005; Shen et al., 2016), while motion gestures based on motion-sensor technology are more bodily involved (Rempel et al., 2014). With different characteristics, the influence of two gestures on mobile marketing game enjoyment is contingent on visual presentation and reward setting through distinct psychological mechanisms. Using two HTML5-based mobile marketing games, we conducted three experiments to provide evidence for our proposed model. The first two experiments show that when a real product picture (vs. symbolic brand logo) is presented, surface gestures (vs. motion gestures) facilitate the formation of mental simulation. Thus, the participants have greater enjoyment of mobile marketing games. In Experiment 2, we used the lucky wheel game to demonstrate that motion gestures (vs. surface gestures) enhance perception of personal control when the reward is uncertain (vs. certain), which in turn resulted in better evaluations of mobile marketing game enjoyment. Moreover, the interactive effect between visual presentation and hand gesture could be extended from hedonic to utilitarian products. Table 2 summarizes the findings of the experiments.