Wear shoes and dirty white socks. Kick off shoes and sometimes wiggle toes. "I've worn these socks now for __ days. Smell my feet. You like that smell? My feet are sweaty huh." Rub feet on each other to itch and use fingers between toes. "Sorry, I might have athletes foot." Keep itching feet. "Hey, do you like dirty socks? Dirty sweaty stinky socks? Cause these are sure wet." Stick your foot towards me. "Smell my athletes foot. Yum." Keep itching and teasing. Last 2 minutes, take off socks and itch and then use foot medicine on feet.