This hand gesture from the Weekly Address seemed symbolic and not a casual hand moove.
Minute 0:47 when saying with emphasis "..but the security of the entire nation".
Good.
If you consider that POTUS shakes his hands twice while the gesture, it might very well be a 5:5 symbol.
This first frame is from a bizarre "Mannequin Challenge" forged by the White Helmets in November 2016:
https:// www.youtube.com/watch?v=Zgl271A6LgQ
Its a must watch.