Physical interaction refers to the direct engagement between individuals or objects through touch or movement. This can include actions like shaking hands, hugging, or playing sports. Such interactions are essential for communication and can convey emotions, intentions, and social connections. In the context of technology, physical interaction also involves how users engage with devices, such as smartphones or tablets. Touchscreens allow users to manipulate digital content through gestures like tapping or swiping. This type of interaction enhances user experience by making technology more intuitive and accessible.