1. I really like your sister. She's very lively and full of energy.2. After the girl got off the phone with her boyfriend, she walked with a jaunty step because she's very happy.
 lively full of energy jauntywalk with a jaunty step 指輕快快活的跳走幾步路，通常因為開心
All the work I've been putting into this project has been all for nothig because my boss is shutting it down.