Look around until you find a red ticket item, it'll appear above your flashlight indicator, which should be to the left of your reserve ammunition. Once you've acquired that item you interact with the 'lil guy under the clothes store' (pressing down, of course) to which the outline of a circle will appear, *click that circle with your mouse*
That last bit being something that confused me as well 3: Nothing ever tells you to click it qwq but yeah ^^