Complex sentence: She had the habit of walking into a room where adults were talking about something confidential and demanding (in a friendly way) to know what was transpiring, and she usually sought the help of her mother when experiencing a dilemma.
Split into simpler sentences: She had the habit of walking into a room where adults were talking about something confidential and demanding (in a friendly way) to know what was transpiring. She usually sought the help of her mother when experiencing a dilemma.