The spelling of the phrase "plays close vest" may seem puzzling at first glance. However, once we break it down phonetically using IPA transcription, the puzzle becomes clearer. "Plays" is pronounced as [pleɪz], while "close" is pronounced as [kloʊs]. "Vest" is pronounced as [vɛst]. When combined, the phrase becomes a reference to someone who keeps their cards close to their chest, revealing very little information. The unusual spelling of the phrase is simply a product of its origin in archaic English.