Yeah. Some of the older men I knew wore the ‘wife beater’ with sleeves style and those were easier to spot than the regular crew neck ones, so now I just try to check the legs.
Women are easy to tell, the bulkiness under the bra.
My brother and I were in a bar in Tijuana. Way back in 1964 before you were born. A hooker came to our table and sat down and started rubbing his leg. Imagine her surprise when she discovered the specialness there.
LOL.