US President Barack Obama urged young people not to "pull back" from the world and to reject cynicism and xenophobia during a Q&A in London.
Obama's comments came after he faced criticism from leading Brexit campaigners, who branded him an irrelevant "lame duck", over a speech he made supporting the UK's membership of the EU.
Labour leader Jeremy Corbyn said he had an "excellent" discussion with US President Barack Obama.
In the private meeting, held on the second day of Mr Obama's UK visit, the president also congratulated him on being elected leader of the opposition in September, Mr Corbyn said, adding that he had "enjoyed" the meeting.
Asked what they discussed, he said:
They also spoke about inequality and poverty levels, he said, and "very briefly" touched on the subject of Britain's membership of the EU.
Barack Obama has warned that Britain's influence on the global stage would be diminished if it votes to leave the EU.
The presidential hopeful says she agrees with Obama comments adding that she 'has always valued a strong UK in a strong EU'.
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