That’s not a Masonic hand sign, that’s a Shaka hand sign.

The shaka is a gesture that you do with your hand that consists of extending the thumb and smallest finger while holding the three middle fingers curled, and gesturing in salutation while presenting the front or back of the hand; the hand may be rotated back and forth for emphasis.

Also from BJJ ...

What we know today as the BJJ Shaka sign, is actually a hand gesture of Hawaiian origins. Mostly, people know it as a gesture that signifies being laid back and relaxed. It is a positive gesture which is often translated as “hang loose” although that is not the literal translation.

That's the cowabunga sign.

Also old people use iPads too, is that nefarious that they adopt modern tech?

According to his hat, he's a Vietnam vet