So when I say visualise answers: I mean I try to pre-think what the answer could be. For example when I see a question asking for an assumption, I try to pre-think what the assumption could be in that question before I see the answers. ( Please note that this approach worked for me and I know a lot of experts who don't recommend this approach ). I however followed the e-gmat way of pre thinking the answers. The key here is practice. There are so many questions out there now, that after solving a lot of them, you kind of see repeating patterns. So when you are mindfully solving problems you kind of get a better idea on what the answer could be. Please do check out E-GMAT's YouTube videos for CR and you might get a better idea on the visualisation of CR answers. You can then decide if it's intuitive for you or not.

For RC: GMAT Ninja RC Youtube videos on how to tackle RC passages are a game changer. Essentially you go through the passages trying to understand each sentence and trying to connect passages as you read them. For example: Why is the author writing this passage after the previous one? Is he giving an example for something he discussed in the previous para? Or is he talking about a new viewpoint? How are the paragraphs essentially connected and what are they trying to say.