I wear revealing clothes when I want action…of course I always want action, so even in the winter, I’ll wear tighter sweaters or can wear some exaggerated v necks that can show cleavage
When my friend and I go out to eat, she makes it clear when she wants to play by wearing a skirt or a dress. It's a signal that there's nothing underneath and I act accordingly. Once, she went to the ladies room and returned with her panties in her purse which she promptly gave me. We played a strip game later that night so I had her put them back on to make things fair.