The current thesis investigates how incidental language learning takes place if there are some affecting factors. First of all, the background is set for the experiment with the help of reviewing some of the relevant theoretical and research findings as far as the affecting factors and the facilitators of the acquisition method that takes place subconsciously. With the help of the experiment the researcher investigated what effects topics of different fields related to the participants’ area of interest and disinterest. What is more, visual and auditory facilitative devices were also applied in order to measure the alteration and their effects on incidental learning. On top of this some contextual factors were also taken into consideration. Finally, the distinction of tasks based on gender differences was also investigated.