The ole grab and yank! Trump's aggressive handshake gives Canadian PM pain he won't forget

When US President Donald Trump met Canadian Prime Minister Justin Trudeau today, many were watching for one thing - the handshake.

Donald Trump has been labelled a 'yank and grab', after his awkward and dominant 'pull fest' on Justin Trudeau. Source: Seven Sharp

Trump is known for his aggressive, dominant handshake style, in which he grips the other and pulls the strongly toward himself.

Psychologists say this can be interpreted as a power play and a sign of wanting to put the other person off balance.

But Trudeau was no pushover - he held his ground and held Donald's hand firm.