Good mentorship is not a motivational speech. It is a sequence of useful corrections, introductions, examples, and decisions made visible. Students benefit most when mentors explain how academic work is actually evaluated.
Specific mentorship can be simple: read this paper first, write the abstract in this structure, email this lab by Friday, revise this paragraph because the claim outruns the evidence.
Encouragement opens the door. Specificity helps a student walk through it.
That specificity is also respectful. It tells the student they are worth real attention, not just general praise. A volunteer hour becomes more valuable when it ends with a clear next action.