They settle on surfaces after being breathed out.
They get on infected people's hands when they cough and sneeze, or touch their face.
They are on surfaces touched by infected people's hands.
You then pick them up by touching an infected person or surface e.g. a cup, door handle, stair rail, mobile phone, computer keyboard, shop counter, and money.
Then touching your face – such as when eating, rubbing your eyes or using the phone.