Because people often work on various skills and crafts at meetings, many will stay in modern clothing. Some wear everyday clothes to meetings and then change into period garb. When you arrive at you first meeting or event, go up to someone and introduce yourself. Explain that you are new and ask who you can talk to about learning more about the group. Approach someone who is working on a project and ask about it.
Most people are glad to talk about what they are doing.
At either meetings or events, people may be so involved with what they came to do that they do not notice a new person. Some are too shy themselves to ask if you are new. Begin by observing others and start a conversation about what they are doing. If you see a skill or craft that interests you, ask who might be willing to teach it. Listen for announcements of guild meetings where people who practice that craft gather to share information and help each other.