Answer: <u><em>The external conflict is between Bob Ewell and Atticus... This is a man vs man conflict and it happens several times in the book...</em></u>
Hope this helps!!
Bev is jealous because Millicent seemed to be interested with Herb Dalton. Smiling seemed to be an indication of her fascination as interpreted by Bev as action speaks louder than words.
It’s annoying and nobody ever gets the answers right especially on this website