An email alert with Highway Code advice from the DSA for pedestrians:
Rule 22
Pelican crossings. These are signal-controlled crossings operated by pedestrians. Push the control button to activate the traffic signals. When the red figure shows, do not cross. When a steady green figure shows, check the traffic has stopped then cross with care. When the green figure begins to flash you should not start to cross. If you have already started you should have time to finish crossing safely.
Rule 23
Puffin crossings differ from pelican crossings as the red and green figures are above the control box on your side of the road and there is no flashing green figure phase. Press the button and wait for the green figure to show.
From my own experience, drivers should be on the lookout for people who totally ignore crossings and just walk out – often with their heads buried in their mobiles. It’s a growing problem.