He certainly was a glad-hand artist, which is what a bank president has to be today—he's got to be a speaker and a handshaker.
1895, in verbal phrase to give the glad hand "extend a welcome." As a verb, attested from 1903 (also gladhand). Often used cynically.
Effusive and warm; cordial: He gave me that glad-hand business
: After glad-handing the local dignitaries, he heads for the fence (1903+)