That depends on how you use reversed cards. As in most things in Tarot, there are many different ways to use them and each will work for you. I think it helps to be clear on how you want to use them before you draw the cards.
RussianSoul's method is fascinating. I would love to try that.
I tend to use reversals to represent delays and/or blockages. In the way I use them, they show that the energy of the upright card is there and present, and that it is trying to exert itself, but there is something that is getting in the way/blocking it from doing so. This means that what the card represents cannot happen until the blockage is removed. If it is something your are looking forward to, it becomes time to figure out what it blocking things from happening as they should and how to remove the blockage so that it can happen sooner.
OR if the card that came up represented something you did not want to manifest in your life,the reversed card tells you thatthat event is trying to manifest itself but something is blocking it from doing so. Then you can work on finding out what is blocking it from happening and work on strenghtening that. And/or finding out why it is trying to manifest in your life and see if you can stop it from trying to do so.
Or often a reversed card, to me, usually just means that things will take a long time to happen, often much longer than expected. Things will keep getting in the way.
Depending on the question of course (and surrounding cards) a reversed card in an advice position could mean, to me, that that is the advice you should take (the advice the upright card is giving you), but you should not just take it right away. It would be related to the "delay" part of reversals.
I think it would say don't rush into it before thinking things out. You should take the time to think it out first and find out the best method to put the advice into practise. Give yourself as much time as you need to plan strategies first. As there will always be a number of ways to put that advice into action. Think it out, find the one that will work best, then proceed.
Bar