How do I tweet my running accomplishments without sounding like an egotistical jerk? For example, on 7-21-10, I did 9 miles at a pace of 7:49 mpm. Today I ran twice as fa at a pace 10 second faster. I'm very proud of my improvement. I like reading about others accomplishments, but I'm concerned that advetising my own sounds like unsolicited bragging. Any advice?