You should be honest with someone you want to date.
Derek, who plays in a punk band, is interested in asking out his classmate, Melissa, to go see a movie and wants to say something to look good for her.
Derek wants to impress Melissa.
Derek tells Melissa about his band and how he aspires to make it big one day.
Derek tells Melissa that his band played the Warped tour last year thinking she would think he was cool.
Melissa thinks it's really cool that Derek plays in a band and decides to go to see a movie with him.
Melissa looks up the lineup for last year and doesn't see Derek's band, so she now thinks he's a liar and won't go out with him.