The sign for "buy" looks like you are taking money from your
hand and placing it in someone else's hand.
Sentence: Everyday you buy what?
SHOPPING: To sign "shopping" do a repeated version of the sign
buy. Use a smaller movement but do it twice. Start the right hand from a
position behind and above the left hand. Then bring it forward and down so it
brushes along the left palm and continues forward out in front of the left
Also see: PAY