Some things an old man (a group that it's still OK to make fun of just because they belong to a demographic?) might be wearing that he keeps adjusting:
shgh
pants hair suspenders hearing aid socks belt
A belt?
Some things an old man (a group that it's still OK to make fun of just because they belong to a demographic?) might be wearing that he keeps adjusting:beltbow tie,boxer shorts,dentures,glasses,hairhat,hearing aidjockey strapknee braces,pantspipeshoe laces,sockssuspenders/braces,toupee,
An old man often pulls up his pants, adjusts his pants to be more comfortable, adjusts his belt (esp. after eating big meals or drinking beer), his underwear when it gets uncomfortable, his shirt tails, and socks.
His false teeth
Camera
Scarf
camera
Binoculars
Headphones
Chicken feet.