I'm Ninnawe on Twitter. I use twitter for random stuff: news, police car chases, 'broadcasts' of high school football games at Mr. RightField's old high school (well, until this year), and of course, following PDJT.
I haven't figured out the hashtag thing, tho. It seems to be important.
I never bothered much with the hashtag thing myself.
The youngsters seem to have fun with them, trying to get certain things "trending". I just go there to get the latest news.