- Always make a best effort to be sure your presentation is immaculate, from physical appearance, body language and attitude, to aspects of design, imagery, and

- Always make a best effort to be sure your presentation is immaculate, from physical appearance, body language and attitude, to aspects of design, imagery, and symbolism, to spelling and grammar. Low-effort failures, like misspelling heuristics in the age of search engines and spellcheckers, don't look good at all.