that your students have now less time and you shouldn't overload them with long art presentations etc.,
that some subjects embarrass them (e.g. nudity may make them feel uncomfortable, but this doesn't mean you have to avoid or ignore it),
to take adavntage of the fact young people are very familiar with advertising images, and advertising often uses the history of painting: make it clear that it's not a coincidence and help them to find images that have been used in that way,
to make your students interested in the history of the artists rather than the history of art (which can be still too general for them).