The tendency to phrase every sentence in the form of a question. This affliction is usually acquired in college as is often the only indication that someone has attended an institution of higher education.
Jenny does not say "I am going to the grocery store.", or "One plus one is two.", or "The sky is blue.". Instead, she says "I am going to the grocery store?", "One plus one is two?" and "The sky is blue?". Jenny's parents shelled out 150K to send her to NYU. All she got out of it was a postmodern speech impediment.