Where did you end up? The park, the train? What is in store for you next. Firstly, I want you to sit yourself opposite someone who you do have the chance to see up the skirt of. In the time you are sat opposite them, firstly I want you to get hard. I have little doubt that that won't need your hands for that, but if you do, obviously you need to be subtle.
Once you are hard, I want you to subtly let them catch a glimpse of your panties or your bra. Stay sat there; who knows, other people might see too. Make sure your legs are uncrossed, so they can see your excitement too.
Now, whilst you are sat there, it is time to assess your points. How do you think you did?