Analysing the lips movement

 I then took two of the videos and analysed the lips movement here is the word "i told Ben"

here is a drawing of the lips movement, the vows.

Another video saying "the sky is nice"

here is the lip-sync breakdown of vows 

From doing this i actually found out not a lot of moving of the lips is emphasized whilst talking. Different things can also affect how your mouth is shaped when pronouncing a word things like your accent or what your doing whilst your talking.