"Dot says the man needs not to lead as much as to just to take a shorter step and allow her to pass and not step across and block her dance line In other words, her step 2 is more aggressive than the man's. In fact she prefers a lead on steps 1 and 3 but almost none on step 2. This may be a personal preference but stresses this leading to the new men she teaches."
The lead the man will use is mostly in the form of sending the lady through step one towards a step two that he can then step inside of. It's not so much that he leads her step two, as that he does things during step 1 which set the character of her step 2, and then _he_ follows her actions such that his own step 2 is smaller.