Try to imagine the group of people that you would like to target with your product. It makes sense to choose a target group that you can identify yourself with. Try to narrow this group down to a few different categories. This question could help you:
A possible answer could be: Male students, in the age of 19 to 25, who are interested in soccer and living in the Ruhr area.
Now you have precisely defined your target group. Ideally all members of this target group share the same passion.
You can find out the size of your target group through social media platforms like Facebook and Instagram. In chapter 4.: Promotion & Marketing we will explain you how that actually works.