1 - Squeeze paste into mouth so you can sense exactly how much you're using. 2 - Wet toothbrush (because everyone knows that magically removes anything nasty in the bristles). 3 - Put in mouth and spread paste around and only then switch toothbrush on. 4 - Divide mouth into 8 segments and brush 2 segments at a time till the brush signals 30 second mark. 5 - Get really bored at how long this is taking. 6 - Either tough it out to the 4 stop/starts signalling the end of 2 minutes or give up half way through and brush everything really hard for 5 seconds.