don't bother
#Hashtag ?
Bottom Line: Hashtags Are Worthless
The article goes as far as saying Twitter is worthless. While there is some debate in the office about this, we do agree on one thing: it's not worth doing if it's not done properly.
If you don't get Twitter, and your audience is not on Twitter, don't do Twitter. If you do use Twitter though, don't expect any value to be gained from #hashtags #that #serve #no #purpose #and #make #your #text #for #the #audience #you #do #have #illegible.
One Valid Use Case
We see this happen all the time on Instagram. For any mainstream artist, their hashtag is completely worthless, because so many people use it on unrelated content to boost reach.
However, our experience shows there is one valid use case for hashtags. It is when organising conversation amongst strangers that are in the same physical space, or will be shortly. These are when events or tours have specific enough hashtags that spammers don't stumble upon them so easily.
#this #does #nothing
( #except #maybe #demonstrate #incompetence )