The #ITVDebate will be more important than any forerunner because mainstream media is paying more attention to social media than ever before. You'll have to play to social media strengths to win in the public eye. Here's how Corbyn can do that.
Keep it brief - Johnson's rambling, elevated lexicon approach is fine for after-dinner speaking but cannot be easily cut for effective bite-sized video. Waffle is ineffective in the soundbite world.
Get personal (a) - The prime minister's character and integrity are absolutely at the heart of his suitability to rule. To "take the high ground" is to miss out on key attack points.
Surprise - Talking points will have been rigorously rehearsed. Throwing something into the mix that has heretofore been undisclosed and diverges from the expected will be a spanner in the works for a rival.
Tactical interventions - In football, a high-pressing style needs well-timed fouls to throw people off their groove and buy respite. It also makes you seem up for the scrap. A few interruptions buys thinking space and damages the opponent's flow.
Questions - Don't just talk, interrogate too. And throw in questions that confound and can be revisited throughout the campaign. A non-answer is still an answer, and a lie to the nation is more damning than a lie to an audience at a press event.
#ITVDebate