There's A Good Reason for Why We 'Uh' and 'Um' When We Talk

Ever catch yourself saying “uhhh” too many times? Many people vow to cut back on relying on such verbal crutches once they realize they’re using them, but they’re not just filler. It seems they act as a cue of sorts for your conversational partners. Researchers from the Max Planck Institute for Psycholinguistics found that listeners actively track when a speaker says “uh” to help predict what kind of word might follow.