Getting Someone's Attention / Interrupting

Can I interrupt for a minute?

Could I just say something

Excuse me.

Hey

Hold it.

I'd like to comment on that.

I'd like to interject.

I'd like to jump in here.

I'm sorry, but

If I may say something here.

If I might add something here.

Just hold on a minute.

Listen

Wait a minute.

Whoa