I shuffled around a bit in an inconspicuous sort of way. The idea was to get close enough to make a side swipe at the gun, knock it outwards, and then jump in fast before she could bring it back in line.

我以一种不显眼的方式四处走动。这个想法足近，猛击枪，把它向外敲，然后在她把它放回原位之前快速跳进去。