It's proper to give your full attention to a speaker.
Andy is listening to a speech given at a graduation when his phone vibrates in his pocket.
Andy wants to check his phone.
Andy waits until the speaker is done and then pulls out his phone and looks at it.
Andy pulls his phone out of his pocket and looks at it.
The speaker is happy that he had the crowd's attention.
The speaker notices a man looking at his phone and is disheartened.