warm escarp
It may not be very realistic, but I think it'd be good gameplay-wise if the AIs you've "befriended" with their items could differentiate your footsteps from that of another AI's.
When I befriended someone like Jacob or Janusz for example, I try following them around and hanging out with them, but my footsteps keep distracting them and setting them off-course and it gets a little annoying.
(Picture unrelated)
nova charm