Ahem, may I have your attention, please?

A sound made to clear the throat, often used to attract attention or signal the need for silence.
Ahem, I think you forgot to mention something important.
Ahem, could you please lower your voice?
Ahem, I believe it's time to start the meeting.
ahem sound
ahem noise
ahem gesture
excuse me
hem
cough
Ahem, can I have your attention, please?

A sound made to get someone's attention or to express hesitation.
Ahem, I think we need to discuss this further.
Ahem, is anyone listening to me?
Ahem, may I interrupt for a moment?
ahem, excuse me
ahem, listen up
ahem, if I may
hem
uh
er