I want you to go to a café a little out of your usual neighbourhood, dressed in a shortish skirt, no panties and wearing an assplug. Sit at a table and order coffee, sipping it for a while as you look around the café. Try and catch the eye of a guy or two.
Casually get up and make your way to the toilets after a while, whether you need to use it or not, and while you're in there, hitch the back of your skirt up and tuck it into the waistband, exposing your ass and plug.
Walk back out to your table, if no-one stops you to tell you about your skirt, and sit back down to finish your coffee. Leave the café with your skirt still hitched up and pretend to finally notice it in the doorway on the way out. Hitch it down again and walk off down the street with an exaggerated sway of your hips and ass.
When you get home, straddle the edge of a bath or a wooden chair arm and grind your wet cunt against it until you cum.
If you do this well, I'll give you another task later.