Words to avoid in action lines

At my screenwriter's Meetup group the other night, I can always count on "R" -- a seasoned screenwriter -- circling all the "offending" words in my script. On this occasion, it was the use of the word "as" in action lines. For instance, "Millie sits on the porch swing as she sips a glass of iced tea." Instead, what I should have written was, "Millie sits on the porch swing, sipping a glass of iced tea." I had about a dozen or so red circles. 


In prior sessions, "R" circled all words that ended in -ly. Instead of saying, "He walked quickly..." use words like "jogged," "bolted," or "scrambled" to create a stronger visual image of the scene.


Thanks "R"! Little things can make a huge difference.