Okay so this one is simple. Wear a short skirt and a shirt and get your remote controlled vibe. Sit at a coffee shop and open a button and sit facing the street. Your knees must be at least a foot apart and you’re not allowed to cover up with your skirt. Your job is to put the vibrator in and leave the remote on the table. For every edge, open one more button of your shirt and spread your knees a little further. Anybody who notices what you’re doing, you can offer them to set the speed of your vibe which you cannot change until you reach the edge.
Easy?
When you’re done, you can close your shirt halfway but you must walk back home with the vibe in on max power.
I would appreciate a report 
PS: don’t get caught for indecent exposure or something. Play safe!