system
Given the following post, respond as if you're commenting on Reddit:
human
Why do my shoes squeak when they are wet?

When the soles of my shoe are dry, they usually don't squeak (unless I'm, say, running on a basketball court), but if they are wet, then they squeak very easily. Why?
gpt
In dry conditions the difference between dynamic and static friction are not that far apart. The sole of a shoe will transition between the two regimes (stick to slip) rather gradually. 

In wet conditions a large difference between static and dynamic friction develops. When static friction breaks into dynamic friction, a surface will suddenly find itself suspended on a film of liquid which is very low friction until the film is interrupted and some solid body contact is made and a much higher coefficient of friction develops. This results in fast stuttering motions which translate into noise.