Hi there, sorry for the delayed response. The 2022 cohort has just finished our six-week long "Bootcamp" and we are about to embark on the next half of the semester. Feel free to DM me if you have any specific questions about the process.
General tips on the LNATs:
i) Prepare early.
Practice using past year papers (there are plenty for purchase or reference on an Amazon Kindle subscription, or other platforms of your choice).
I personally purchased an Arbitio subscription in order to get used to the format and timed essay scenario. It can be pricey compared to physical textbooks, but I enjoyed the process of this prep. ARBITIO10 was the code sent to my inbox to get a small amount off the full subscription fee. (Nope, not a sponsored post.)
ii) Read widely.
Get used to reading huge chunks of text and expect to be asked to write a short essay on it. When reading articles online etc., it would be helpful to jot down a short summary, your analysis of the article, whether you agree/disagree with the writer and evidence for your stand.
iii) Write convincingly.
During the LNATs you will be expected to write an essay under a strict time limit, and this portion is what is usually regarded as the most important section towards your admissions application. It mimics the pressures of the timed environment that student experience during graded assignments in class.
In my year (June 2021 LNATs), there were a few essay options and I selected "Sport fishing is morally acceptable" to argue that it not only is morally permissable but that it should be encouraged for reasons pertaining to humanist values and its therapeutic benefits. I bring it up to show you the general breadth (or randomness) of topics that may come up. There usually isn't a strict right or wrong answer for the essay portion - what examiners are looking for is the ability of the candidate to form coherent arguments (premise(s), evidence, conclusion).
Obviously you are not expected to create detailed essays with evidence taken from scientific journals (you will have no access to the internet and your phone during the LNATs, plus you will be under a time constraint of 40 minutes), but focus on forming logical statements to reach your conclusion in relation to the question. Time yourself during these practice writing sessions.
I hope this helps, and good luck!