David should ensure his attire doesn't distract from the wedding ceremony by following the 'step-above rule' and avoiding any elements that draw excessive attention.
When selecting attire, he should consider matching the formality of the occasion and avoiding any elements that could draw excessive attention. The goal is to dress appropriately to establish credibility and not overshadow the event.
By following the 'step-above rule' and avoiding distractions in appearance, David can present himself as someone to be taken seriously without creating unnecessary distance from the audience.
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