Look at a clip from about 1965. In this Thomas Barry is talking about the highly controversial Kilmichael Ambush. Many people believe that T B Barry was lying about what happened. It is widely claimed that Barry was dishonest in saying that the Auxiliaries used a false surrender trick. Notice his blink rate and how often he turns away. He touches his nose at a very crucial point – when he said his men were killed because they stood up when the Auxies tried a false surrender dirty trick. When someone says something false more blood goes to his or her nose. This causes the nose to swell and become itchy. It is the Pinnochio effect. This is why people tend to rub their proboscises right after stating a falsehood. This is the only moment in all clips of him I have seen that Barry rubs his snout. Co incidence.
Look at this clip. Contrast it with the earlier clip. This is an interview in circa 1978. Barry is speaking about events in 1916 when he was in the British Army. He is stating facts that no one would contest. Because he is speaking the truth you will observe that he hardly ever blinks. He does not look away or touch his nose. He speaks reasonably slowly. This is the second video clip.