“There is something that you are not telling me”
How can you tell if there is something more that someone wants to add, but for some reason they are “holding their tongue”. There are various ways and these can change depending on cultural background. But I am going to look at a couple of the more common ones.
A fair description of what goes on is what I have already said, holding your tongue. When you are looking for clues to deception it is not always about telling a direct lie, sometimes deception can be accomplished by omission of information. This can often be more difficult to spot.
Holding the tongue between the teeth is a signal that someone is trying to resist the temptation to say something, just as is the cheek bite. Remember though, you may not be sure what the information being held back is. It may not be a lie as such, there may be no intention of deceit. They may be holding back on something they feel personally embarrassed or ashamed about. We must also consider baseline. This may be a normal operating procedure for them. Maybe they have a sore tongue, maybe they have dry lips. Only by knowing what is usual, can you see what is unusual.
The other holding sign is the lip roll. Rolling the lips inwards between the teeth or pressing the lips together so that the darker lip area disappears. This is a really good indicator that someone is trying to hold back on saying something. Consider other factors along side. Nothing happens in isolation, you will need to look at the other signs at the same time. Rolling the lips with a lowered brown and raised lower eyelid is closer to a sign of anger. You can almost guarantee that someone is holding in their anger.
You have to consider many options when people don’t want to tell you something. Don’t assume that there is a vindictive or deceptive reason for doing so. Perhaps they are considering the impact of what they might say and sparing the feelings of those around them.
To make an assumption on what you see is inviting error. Dr. Ekman called this the Othello Error. Making an assumption that what you see means something specific rather than looking at the alternative possibilities.