I just love playing with myself outdoors, in the hope I am seen.
I totally relate to other contributions here about masturbating outdoors. The first time I did this I was only 15. It was the end of the school term and I was really glad it was over. I walked home and walked across a playing field. I sat down on a bank and just reached up under my t shirt. I wasn't wearing a bra that day and touching myself outdoors was a blast. Soon, I had my hand up my skirt and a finger inside myself. The orgasm was a total blast.
These days, I vary what I do, where, and whether or not I want to be seen. Yes, I love being watched either by men or other girls. I also enjoy a little wet fun from time to time, but for me, that is a treat I allow myself only rarely.
My usual way is to wear something accessible OR something very easy to slip on and off.
Let me tell you what I did yesterday evening. I wore a pale yellow summer dress and that is all. Nothing underneath! I went to the local beach which is full of deep sand dunes. There were a lot of people around near the waterline, some of whom were topless. I let myself check out the people there. (I am bi, so topless girls do it for me too!) When I got even hornier than I was on the way there, I found myself a nice hollow in the dunes. I slipped my dress off and lay face down on it. I reached under myself to my pussy and started to work on my clit. I could hear people all around me and with my eyes closed; it was easy to pretend they were all there watching no-one but me. I let my legs spread a little and brought myself off.
I love doing it like this.