Based on the excerpt available on DoctorWhoTV
http://doctorwhotv.co.uk/the-12th-doctor-audition-scripts-51955.htm
The new Doctor is of sufficiently different height as to notice it when looking at Clara. I'm assuming shorter, since Matt Smith was pretty tall. And a smaller chin, but that's not a surprise, either.
http://doctorwhotv.co.uk/the-12th-doctor-audition-scripts-51955.htm
The new Doctor is of sufficiently different height as to notice it when looking at Clara. I'm assuming shorter, since Matt Smith was pretty tall. And a smaller chin, but that's not a surprise, either.