Download and read TLBTLD available on this site. It easily answers your questions. If you say that you've never lied to a loved one, it will raise suspicions with the examiner as I can't imagine anyone could honestly say they haven't done this at one time or another. Admit to a few little white lies that you told because you wanted to spare a loved ones' feelings (ex. you recently told your mother you liked her new haircut when you didn't- don't use this exact one.) Don't tell all your misdeeds and clear your conscience on the controls like I did (I failed-no CMs as I didn't know they existed.) The examiner expects a truthful examinee to be concerned or even withold some info. regarding controls. However, there are some controls one could honestly deny ever doing. Again, read the book, it will help explain things a great deal.

it doesnt matter how you answer it as long as it causes you to react. or you cause the reaction on purpose so that you will end up with a positive spot score vs the relevant question. also, keep in mind that the "scorable" part of the question occurs almost immediately after the question is asked, not just after you say yes or no, and continues for several seconds thereafter.