"This could mean..."
"I infer...because..."
"My guess is..."
"I predict...because..."
"I think...because..."
"Maybe..."
"This is making me think..."
"I wonder why..."
"I wonder if..."
"What if..."
"Why is/would/did/that..."
"How could..."
"This reminds me of...."
"I have a connection to..."
"I can relate to..."
"This reminds me of another book/character because..."
"In my mind I picture..."
"I can see/feel/taste/smell/hear..."
"I'm visualizing..."
"My new thinking is..."
"I'm beginning to think..."
"I use to think..., but now I think..."
"Now I understand why..."
"One thing we should notice..."
"I want to remember..."
"What's important here..."
This part seems important because...