Crossword puzzle clue "you might get one by raising your hand"

You might get one by raising your hand

You can get its attention by raising your hand

Sounds you might make when I say "Would you rather watch your parents have sex or have your parents watch you have sex?"

Something you might get your hand slapped for doing

Hand-holding, spirit-raising get-together

Where you might put your balls before hitting your balls as hard as you can

You might have one to visit Japan, but you'll need a bunch once you get there

What you might do if you get a dent from someone who slaps your car's hood while crossing the street?