I expect this has been discussed before but the threads move so fast.
Apart from being coughed or sneezed on directly, touching your face is mainly how you catch it - your hand picks up the virus from a hard surface, you scratch your nose/rub your eye etc., then the virus gets into the receptors in your lungs.
Very hard to remember not to touch your face though. Ideas I’ve read online include wearing a surgical mask (they’re no protection otherwise), woolly gloves, big glasses. Make-up. I’d wondered about Elizabethan ruffs and cones of shame … Any other ideas?