How do you do that? It's a subtle but super important shift. You need to forget about anything that only matters to those in the room, and basically pretend you're not there. So:
- not the name of the event, because you've covered that by using the event hashtag, and anyone who doesn't know the event hashtag doesn't care what the event is
- not anything observational, such as "person x takes to the stage" - because anyone in the room already knows that, and anyone not there doesn't care
- nothing vague ("fantastic keynote speech by person z"). Because anyone there will make up their own mind, because they heard it, and anyone not there thinks you're bragging about the fact you're there. Also, more tough love: no one cares what you think unless they've been given enough information to also form an opinion of their own.
By eliminating these sorts of tweets, we're tapping into the most important factors for success on social media:
* Content needs to pass the 'so what?' test ("person x takes to the stage for their keynote speech" -- so what?)
* Content needs to have a user-centred focus ("person x's speech was excellent" - says who? Why should anyone care about your opinion?)
* Content needs to add to the conversation (provide value)
If that feels tricky to get right, try not to overthink it. I always advise people to wait for their own "ah ha!" moment at a live event. What the speaker said that made everyone in the room sit up and stop playing on their phones. When everyone laughed. When you could hear a pin drop. When people clapped. What made those moments happen? Those are your tweets.