osman yaya from bennett middle school in salisbury , maryland , was moderating a town hall event when the president started getting a little long-winded when answering a question about how to avoid writer 's block .
as the president started to repeat himself , osman politely stepped in : ` yeah .
the president had been talking about the topic for more than three minutes when yahya politely intervened after shifting nerviously in his seat .
obama grinned and replied , ` osman thinks i 've been talking too long .