I agree with warrior74, it's a style thing that may not be for you.
Does doing this "peacocking" in this manner suit your style, personality, and the rest of your appearance? (think about that last one especially-if the rest of your dress doesn't compliment having something like painted nails, you're going to look silly).
Here's really the most important thing to take away from peacocking, IMO. You'll get attention, that parts not that hard. Some of it may be good, some it may be bad. But with either type of attention, you need the confidence and game to back it up. IOW, be prepared for under the breath or direct comments in a disapproving manner (especially from men, and some women), and have the game to deal with it, and know how to handle them without being made to feel silly or be upset. Likewise, if you attract positive attention from a woman from peacocking, you need to be able to quickly move forward from there. IOW, it's just a means of setting yourself apart from the crowd and a way to start conversation, but in and of itself, won't do anything for you.
I wouldn't do it for two reasons. One, it's not my style. And two, it can back fire as being seen as "too metrosexual" or a desperate plea for attention. There are more subtle ways to accomplish your goal, IMO.
Also, be honest about what you're trying to accomplish here. You absolutely do care what other people think, or you wouldn't be consider this in the first place.