When I arrived at Live True, I was asked to wait outside — that's the first change I noticed. Salons will only allow people with an appointment to enter the salon (so you cannot bring a friend or your kids with you), and you'll only be permitted to enter the salon when your stylist is ready for you. The entrances were clearly indicated as entry or exit only, too, so people weren't crossing paths regularly on the way into or out of the salon.
When I was allowed inside the salon to check in for my haircut, my temperature was checked, and I was asked to use the provided hand sanitizer. The salon itself had changed quite a bit too, again, in all the ways you'd expect. There were glass screens between every basin and chair (just like the self-service checkouts in the supermarket), and the salon also added signage to remind people of social-distancing regulations. Additionally, there was tape on the floor to make distancing even clearer, and any counter (where you pay for your haircut afterward, for example) was surrounded with perspex screens.