Libra communicators come across as very pleasing. Diplomacy comes naturally to these natives. At the very least, they take many pains to be diplomatic. Whether they succeed or not depends on their audience--but more on that later.
Mercury in Libra people long for equality in the intellectual world. They view mental affinity as one of the most important themes in any relationship they have. If they are not getting it (and many do not), they should look within themselves for answers. Perhaps they are trying too hard to score intellectual points with their partners instead of truly listening to what they are saying. Mercury in Libra attempts always to be fair in any discussion, but to more personal communicators, Libra's constant comparisons can, in effect, seem unfair! Libra can go off on so many tangents, and offer excessive disclaimers for any opinion presented, that they end up all over the place.
If you think Virgo is critical and a perfectionist, spend some time with a Mercury in Libra person (and many of them have Virgo Suns too). They can't quite help themselves. But because they always aim to be kind and fair, they employ tact to get their message across. Mercury in Libra comes across in an unassuming manner, and handles people with care. When they find fault with others, they express it gently, consciously tending to others' comfort levels. One accountant I know whose Mercury is in Libra feels she instinctively hones in on imbalances in her work. When her co-worker was struggling with "balancing the books", this lady immediately saw her co-worker's oversight. Instead of simply pointing it out and risking embarrassing him, she pointed to the general area of the mistake and said, "perhaps the problem is somewhere here?" This way, she stayed out of trouble, and no one had to feel uncomfortable.
Mercury in Libra looks for compromise. Middle ground is constantly sought. In fact, they are extraordinarily uncomfortable with extremes of opinion! This makes them excellent counselors and go-betweens, but it also gives rise to plenty of indecision in their personal lives. In their desire to find the best, fairest, most just choice, they can swing from a pro to a con, and back to a pro again--but we can't forget another "con" just to balance the last "pro". It can be dizzying for others to observe! They simply can't help but see the other side. This maddening characteristic leads to a strange paradox -- they can end up seemingly in capable of giving a compliment without a "but". After all, complimenting you is essentially drawing a conclusion, or forming an opinion. This is a paradox because Libra is charming, but give them a little time with something, and they will have a hard time arriving at a totally good (or totally bad) conclusion.
Their ability to think in the abstract gives them a good measure of objectivity. These people have a subtle intelligence. Their thoughts are generally dominated by relative thinking--they simply can't seem to evaluate their environment without comparing one thing with an other. This trait contributes to refined tastes.
Mercury in Libra is generally good at making connections with others, but remember that Libra can be a lazy sign--and for Mercury in Libra natives, this means mental laziness. This can prevent them from following up and maintaining the connections they've made.
Mercury in Libra hates to be thought of as the bad guy (or gal), and can end up trying to make too many people happy.
Mercury in Libra often has to turn to others for opinions when making a decision. The maddening part of it is this: Give these people an answer to their question, and they'll probably take the other side. For example, if they are deciding between two different restaurants, and you give them an answer, they are almost sure to suddenly see the other restaurant's merits. These natives play devil's advocate far too often. Many times they don't even truly believe the side they have taken--they are simply engaging in an intellectual argument. Mercury in Libra would be wise to look inside themselves to do a check on what they really feel every now and again. They can get so caught up in trying to win an argument and correcting the (perceived) biases in others' beliefs and actions that they totally lose sight of what really matters to them.
Favorite expression: "On the other hand..."; "But then again..."
