Rather than bowing or curtsying to the royals, both Trumps reached out to them for handshakes.
Although not technically against the rules, it is frowned upon.
Still, unsurprisingly, the former president considers meeting the Queen a considerable personal coup for himself.

As Hill notes, his whole demeanor would soften.
(viaThe New York Times).
Clearly, the Queen made a serious impact on the president.
