In this Photo, David Cameron, the current Prime Minister of The United Kingdom, displays mild to moderately pursed lips. This is a very reliable indicator that Mr. Cameron is in disagreement with another leader (Navarro). There is also a high likelihood that he has an alternative idea which he believes is superior (Brown). This is seen very frequently in business, politics and in personal life. It is an extremely valuable negotiation tool - although sometimes examples in the "every day world" are even more subtle, and thus not so easy to spot. Interestingly, when a person displays this signal, there is a significant chance that they will not voice their differences aloud - so be prepared for a clandestine "end-run".