The document analyzes feedback from a friend who viewed sample thriller opening sequences to help understand how an audience would react. For the first sequence, she enjoyed parts that built anticipation like hearing the character's heartbeat, but felt the swimming went on too long and became repetitive. For the second, she liked how shots of the empty house built a sense of danger and isolation. However, she felt calling out "hello" made it too predictable and cliché. Overall, she advised including suspense but not dragging it out, and using foreshadowing to engage the audience's imagination.