Great question— for me it is conceptual— as a former UX DESIGNER and information Architect it is ALL about mental models —- we all know mentally what it might be like to throw some flowers— they are relatively soft and light — indeed they may blow themselves out like overblown rises with petals falling everywhere— but a coin—- is made of metal and therefore can become a weapon —how often have you seen someone throw coins at anything other than into a fountain… or the ocean as I was advised to do in Mobay Jamaica 🇯🇲 in the springtime… it’s the embodied experience that creates that mental model for me… your experience may be quite different but in doing user research one might discover that we share a common mental model…