Usually airports use signs with both graphics and text for this. Removes the ambiguity unless you mistake the image of a bag for the tray and vice versa.
Which leaves me confused with GP's suggestion. Every TSA line I've been in already has these signs. Are airports in other countries worse about their signage than TSA?
Which leaves me confused with GP's suggestion. Every TSA line I've been in already has these signs. Are airports in other countries worse about their signage than TSA?