Interact with the text! Good readers not only recite (say) the text to themselves, but they have conversations with the text. Sometimes they ask questions or even disagree with the content. When you only hear yourself saying the words, you won't remember what you've read.
Good readers have a video camera playing inside their head as they read. If you don't get a visual image from the words, go back and re-read what you read.
Good readers catch themselves when they are thinking about something unrelated to the text. When this happens, try to reconnect with the reading.
Good readers can usually retell what they read. If you can't, it's a signal to go back and re-read the passage.
Good readers question themselves to clarify meaning. If this isn't happening, it means the reader needs more background knowledge.
Good readers keep track of characters and know who they are.