How do you get a guy or girl to Notice you ? comment your ideas !!!!

Me: *staring at my crush*
My Crush: "You okay ?"
Me: *still looking at him*
My Crush: Hello ?
Me: Ermm  ermm yeah ...... *Smiles*
My Crush: Okay.........
Me: *Thinking* OMG I CANT BELIVE IT I JUST EMBARRASSED MYSELF IN FRONT OF HIM ! 
This happens everyday !
What's one of your embarrassed moments ?