Donald Trump's transition onto the world stage has not always gone smoothly. The US President has only been in office since January, but already a trail of awkward encounters and apparent snubs lies in his wake.

The latest came this week when, during a meet and greet for the G20 summit in Germany, Polish First Lady Agata Kornhauser-Duda seemed to inadvertently bypass his proferred hand, instead walking over to greet his wife Melania.

Here, we round up Trump's most socially awkward moments.

1. The Polish brush off

Some have called it a snub. Others are outraged at the idea that First Lady Agata Kornhauser-Duda deliberately avoided President Trump's handshake, calling the alleged incident #FakeNews. A few have suggested that she was making a statement.

Make up your own mind...