Having read about vaccinated people catching Covid (but generally NOT getting hospitalised) I think everyone (vaccinated one dose, two doses or unvaccinated) should be thinking about face shields - whatever government tells us and whatever people will write here about air currents! I am not such a great fan of putting too much emphasis on hand washing as between washing times the virus can so easily be picked up and passed on. I am a 100% advocate of well-fitting face masks combined with face shields (although until now I wore the latter only when requested by a store). The face shield helps prevent droplets landing on the face mask and also prevents touching of the eyes and this area is not covered by a face mask but is a perfect route for entry of the virus (many studies show this to be the case). It may be that many infections in mask-wearers are via the eyes by touching or by transmission through the air from an infected person. I wear specs so have a part protection (mainly to reduce touching of my eyes) but it really makes sense for me to wear a face shield all the time outdoors as I am not yet vaccinated. The fact that vaccinated individuals are getting Covid means the same for them - although their risk of serious illness is far less but the unpleasant experience and worry is still best avoided.