If you have the opportunity to make presentations to groups of people who may be interested in your topic, always go for it. It is good practice to speak to these groups and after a short time you will be able to tell which ones are the best ones for the information you are presenting.
Make sure that you have a handout to give everyone in the audience. Use brightly colored paper and make sure it is at least 24 pound paper so that it is not too flimsy. One page is enough for the handout. It should include some relevant information that they will want to keep, along with your name and contact information. If you have a special class or program coming up, be sure to talk about it and direct them to it on your handout. The idea is that you want the people you speak to to make a connection with you during the time you are there. That way they are far more likely to call you, visit your website, or tell someone else about you.
You may want to begin with smaller groups so that you can practice what you will say and how you will say it. Allow time for questions and spend enough time to give a complete answer. This will be an opportunity for you show that you know more about your topic.
There are always groups looking for speakers. The local Rotary Club, professional organizations and other groups usually need speakers and will give you a chance to talk. Ask them how long you will have and try to visit the location where you will be speaking before the day of the event. This will give you a feel for the room and the surroundings. Arrive a little early so that you can get a good parking spot.
Get a business card from each of the people you are speaking to and promise to give them more information. Ask for their permission to do this so that they do not get upset and feel you are spamming them.
By taking the time to give presentations you can reach more people and perfect your speaking and presentation skills.