Find a weapon to use against it
Try to shoot it
Try reasoning with it
He's the Face of Bo right?
I know him really well
I think I've heard him mentioned before
OMG I WOULD GIVE HER A MASSIVE HUG
Eye her suspiciously
Wait how did she get inside the tardis?
Try and act more important and knowledgeable than her
Kill the head timelord
Kill the innocent man
Stand up for the innocent man
Quickly escape while the head timelord isn't looking
Ummm, fly the tardis?
Use a sonic screwdriver to figure out how everything works
Try to recall how the doctor normally does it
Open the heart of the tardis for help