In a Reiki seminar, you can expect to learn the fundamental concepts of Reiki, including its history, principles, and the energetic system of the body. You will also receive hands-on training in various Reiki techniques, such as self-healing, treating others, and distant healing. The seminar may include interactive discussions, demonstrations, practice sessions, and opportunities for questions and answers. By the end of the seminar, you will have gained a solid foundation in Reiki and may receive certification or attunements, depending on the level of training.