If you want to catch someone's attention on Twitter for the first time, and engage them in near real-time chat, it might be worth sending them a message around the time they seem to be tweeting most... Twitter charts breaks down when people are tweeting, displaying the result as a matrix chart ordered by day of the week and hour of the day. Join discussion...

Mmmmm - pizza... Join discussion...

Coffee for breakfast, and regular meals throughout the day... Join discussion...