Patients with Question Mark Syndrome often exhibit an excessive use of question marks in everyday conversation. This may manifest as a tendency to end every sentence with a question, leading to confusion among friends and family.
Individuals with Question Mark Syndrome often experience an increased reliance on Google to find answers to basic questions like "What day is it?" or "What's for dinner?"
Some patients with Question Mark Syndrome have been known to develop a habit of creating elaborate question mark-based art projects, such as question mark mosaics or question mark sculptures.