Twitter Hashtag Tip 1
You should use hashtags in Twitter (This is where they gained their influence). but do not use too many.
Use one or two at the most. If you use more than two your reach could go down between 17-20%.
Twitter is not Instagram where you can use more. I am seeing people on Twitter use four or more hashtags, this will mean your tweet is seen even less by your followers not more.
Twitter Hashtag Tip 2
Another tip is use hashtags for text you have not used in your tweet. So for example if you are telling people about your ‘hotel breaks in Cornwall’ there is no need to use #cornwall as a hashtag because Twitter will pick that up. Use #weekendplans or #holiday which will extend your reach.