Note: In a lecture, this is only possible for students, not for the lecturer.
To like a silent question, proceed as follows:
- Go to the lecture for which you want to like a silent question.
- Click Silent Questions in the left-hand menu.
- Click next to the question you want to like.
Result: The like count has been increased by 1. Questions are ordered from new to old for students, and according to the number of likes for teachers. This way the students don't miss the latest questions, and the teacher sees the questions that are most relevant.