Just as one’s speech may fluctuate between clear to unclear, good to bad, fluency can come and go. The better days may be those where the speaker is well rested, calm and feeling generally confident. On days when the speaker is feeling tired, restless and anxious, disfluency may be more common in their speech. Fluency can also depend on the individuals the speaker is speaking with. A stutterer may have no trouble speaking with family members and friends, but in conversations with strangers or in interviews, they may have difficulty getting their words out.