Donald Trump meets the Queen, breaks protocol by failing to bow, walking in front

Donald Trump has raised eyebrows across the Commonwealth after his brash approach to meeting Queen Elizabeth.

The US President failed to bow when he met the 92-year-old monarch during his trip to the United Kingdom on Friday (local time).

He also walked in front of the Sovereign, which is a big no-no for anyone, even her own family members. 

Mr Trump didn't break protocol by turning up exactly on time, but it was considered rude as guests of the Queen are expected to arrive early.

"I can't even watch this... No bow or curtsey and now #Trump walks in front of the Queen... surely he knows the protocol but chooses to ignore it and that's just bloody rude," one Twitter user wrote.

"Well #Trump should be ashamed of how he behaved in front of the queen. No respect for protocol or even decent manners. She's an elderly lady and the way you behaved is arrogant and disgusting," another person said.

Official advice on meeting the Queen states that people do not need to bow, but it is encouraged.

"For men this is a neck bow (from the head only) whilst women do a small curtsy. Other people prefer simply to shake hands in the usual way. "