Any ideas on What POTUS Might be signaling?

Saturday's photo shoot

https://www.newsmax.com/politics/trump-macron-army-tweet/2018/11/10/id/890164/?ns_mail_uid=cf0eba00-5905-45b7-a2ee-3f6ca34ccc33&ns_mail_job=DM8266_11102018&s=acs&dkt_nbr=010102413az6

>>3875831

Look at POTUS fingers on his Shaking hand.

Ring finger is a lot lower then the others.