Which words are good to use in the opening of a pitch?

Starting a pitch with "Thank you" is effective because it immediately establishes a polite and appreciative tone. This can make the audience more receptive to your message and demonstrates respect for their time and attention. It's a simple yet powerful way to create a positive first impression. "You'll" is less ideal because it can sound presumptive or demanding, immediately focusing on what the audience will do rather than acknowledging them. "I" can make the pitch seem self-centered from the outset, shifting the focus to the presenter rather than the audience's needs or the value being offered. While "None of the options" is technically a choice, "Thank you" stands out as a universally positive and professional opening.