While sales figures may not yet reflect it, optimism in the real estate community has definitely increased concerning the housing market, according to a recent survey of member brokerage firms of Leading Real Estate Companies of the World®.  Over 63% of brokers indicated that the mood of consumers has improved since the beginning of 2009, which is also reflected in the outlook of sales associates.  Market activity, including open house attendance, property showings, and Web site traffic, is much more favorable versus this time last year according to 68% of those surveyed.  The vast majority of activity is in the first-time buyer market, with 84% noting that this segment's sales have increased the most, with 24% and 30% citing move-up buyers and investors, respectively, as also experiencing increased activity.  Low prices are the greatest driver, with 72% noting this as a determining factor, and the first-time buyer tax credit and low interest rates were each also indicated by 63% of respondents.