Hi!
High friction is going to be a very rough surface against another rough surface— it’s going to be hard to move against each other. (Picture a slide made of gravel. You aren’t going to slide very well because of friction.
Low friction, like ice, is going to be a very smooth surface. Almost nothing to rub against. (Now picture sliding on a slide made of ice. You will slide very quickly down!)
Hope this helped, let me know if I need to explain more :)
