I am currently in London. Numerous people are wearing masks, but with two or three exceptions, everyone wearing a mask has been Oriental as they still say here.
Handwashing and hand sanitizers are everywhere. Even a major store on Carnaby Street has a big window display encouraging people to come in and wash their hands. I joke that the first thing I packed in my luggage was hand sanitizer, but thats not really too much of an exaggeration.
Have a great time in London! Handwashing and hand sanitizers everywhere sounds like what we should also be doing.