A woman in a red long-sleeved shirt and blue jeans stands at the lectern speaking at or about GLAM U WIKI.
A woman is giving a speech to an interested crowd.
A woman speaking at a lecture is not necessarily giving a speech to an interested crowd.
The crowd may not be interested in the speech
Not all lecterns are used for speeches. Speaking at a lectern does not always imply there is a crowd or that the crowd is interested.