Seven videotapes of teachers teaching under the eye of trained teacher advisers and discussing their efforts with the advisers, coupled with interviews with the teachers and advisers involved, provided researchers with information on effective adviser-teacher relationships. The seven videotaped conferences selected for analysis involved advisers with 1 to 3 years' experience and teachers practicing at levels from the first grade to high school. Each adviser in the Marin County (California) Office of Education's Teacher Advisor Project was a teacher assigned on a full-time basis to advise teachers at up to four school sites. The adviser role involved recruiting teachers to be advised, organizing observations and conferences, and offering advice (though the tapes revealed such instances were rare in practice, for several possible reasons). The tapes illustrated six principles of face-to-face advising. Three involved talk about teaching: the use of common language, the ability to focus, and the provision of hard evidence. The other three enhanced collegial trust: the encouragement of interaction, reliance on a predictable agenda, and the display of reciprocal respect. Examples were drawn from the tapes to illustrate successful interactions and successful conference leadership by advisers. (PGD)