Circle unfamiliar words and look up definitions
Use question marks to indicate areas of uncertainty
Use stars to indicate important things like themes, symbols, foreshadowing
Use exclamation points to indicate something dramatic or a key turning point
Circle or mark character names when first introduced
Keep a list of characters and their traits
Write notes in the margins, on sticky notes, or in a separate notebook
Paraphrase or summarize each chapter
Write down questions about the text
Use a color-coded system
Give each chapter a title