I worked in an old age home on school holiday and many of the residents would tell me their age followed by "you know." I've never understood the "you know" bit but love it, so I use it whenever I give my age. "I'm 28, you know."
@fesshole "but it's so easy to get in and out of, you knooww"
(Soz, Top Gear reference for whoever didn't get it)