Historical clue formulations

• Attention-getting cry — 2023-07-27
• Words said with a wave — 2020-10-30
• "Psst!" — 2020-03-03
• "This way!" — 2018-04-14
• Shout from an arm waver — 2017-03-12
• Possible reply to "Where are you?" — 2016-03-27
• Helpful cry during a rescue mission — 2015-11-24
• "Psst!" — 2010-07-21
• Cry for attention — 2009-10-03
• "Psst!" — 2005-06-26
• "Yoo-hoo!" — 2004-08-31
• Rescuee's cry — 1998-08-24
• "Psst!" — 1997-12-13