I think women are generally able to figure out if a guy favors one body part over another. :::Why is he always rubbing on my thighs/shoulders/arms/feet? But not my chest or butt? Why does he always give me the heavy grocery bag? hmmmmm 
::::::: Telling them just confirms what they already suspected. 
You're reminding me of an internet first (and last) date I had with a psychologist. She had a sleeveless blouse on, and she asked me, "Why do you keep looking at my arms?" Don't remember my BS answer, but her arms were decent for not being a lifter.
