If your goal is to gain the dominance advantage, but nature dealt you the short stack, there are several ways to use your environment in your favour. One of which is to create a scenario where it is natural to present to a seated audience. A man might use the standing advantage at a bar to pick up women by waiting for her sit instead of approaching her while she dances. Present to the seated naturally gives you a large height advantage. Stages by their nature are designed to give power to the speaker. Fewer interruptions from the audience is the direct result of being higher than them. It is very unnatural to address someone with any degree of authority from a lower position and we instinctively know this.
An advanced, although cruel tactic includes sabotaging others by providing them with lower chairs. It’s not uncommon in the interview process to give prospects unpadded chairs with short legs. When multiple people are present, just claim the tallest chair! A chair with an abnormally tall back commonly used by royalty will make someone appear shorter due to perspective, but will also serve to make them appear more dominant and authoritative.