On a related note, smalls now use flat-hand for pretend telephones rather than the traditional y-hand.
Also reminds me of a time, back in the 1990s, of being on some delayed train or other and observing $businessman_in_his_suit_and_tie lending his cutting-edge Nokia brick to $frail_old_lady, so she could inform whoever was meeting her at the station. Being familiar with radio telephony, she held its speaker to her mouth in the traditional walkie-talkie style when speaking, but brought it closer to her ear when listening, because it wasn't very loud...