Decide your niche...where you want to focus your work, such as condos or houses or a specific neighborhood or a type of property, such as water front or golf course, or type of buyer such as first time, etc. After that, investigate how to connect with those residents in that segment. Then create your personal brand, be consistent across your marketing platforms, clear with your message, and constantly on social media fine tuning your message. Networking, like Steve said, is best. Get out and talk to people face to face. For finding buyers, classic advertising and social media work best. Consider doing monthly workshops on real estate topics to attract contacts and build your group email list.