How to host a Twitter chat:
1. Decide on a hashtag
This is a very important part, because the hashtag you choose will stick with you the entire duration of your Twitter chat life (for that chat). Keep the hashtag short and sweet. Remember that people will be typing that hashtag over and over again during the chat and if it's long it can be misspelled or take up too many characters for them to give a full response. Also check that the hashtag isn't too popular or used often. If you choose something that is used often, then chat participants won't be able to find the conversation among all of the other tweets.