With all recent CSM grads and visit from Mike Cohn, we're making a lot of tweaks to the process. One great tip came from Mike (based on a question from a new Scrum Master):
People on a team will get into the habit of answering the three Daily Scrum questions by addressing the Scrum Master directly. This reinforces the "Scrum Master is the Lead" mind-set, which is not what you want. Each team member is addressing the team as a whole, making a commitment to them.
The tip is for the SM to avoid eye contact. Look at the ground, at the task board, etc. This forces the speaker to address others in the team.
Works like a charm!