1. Whining
2. Airing out your dirty laundry
3. Chatting up a storm
4. Overload on promo
5. Dogging your job
6. Not knowing the difference between a personal and business profile
7. Overusing hashtags
8. Following only those that follow you
9. Sounding fake or robotic
Does your Twitter personality match your day-to-day self? If you have to think about it, you're doing something wrong. People want to get to know you better, not your alter ego.