A computer-implemented method for emulating the behavior of a user in a computer-human interaction environment is described. An image of a window and data relating to positions of clicks executed within the image are received. A probabilistic model is created to estimate a probability of a click being executed in a region of a window. Clicks, in accordance with the probabilistic model, are executed within windows associated with a plurality of applications. A clicks distribution model is created based on the position of the clicks executed within the windows of the plurality of applications. Clicks, in accordance with the clicks distribution model, are executed within a window associated with an application being tested.