Do you skate well? - Yes, I do.
Does he ski in the afternoon? - No, he doesn't.
Do they jump well? - No, they don't.
Does Alice dance well? - Yes, she does.
Does / doesn't используется с подлежащими в 3 лице ед.ч. : he, she, it, Nick, Alice
Do / don't используется со всеми остальными подлежащими : I, we, they, you,