Actually, in this poll I like to play all the options:
First of all, a complete comparison muscle size between muscular female and me, followed immediately by a precise measuring of her biceps and other muscles (forearms, thighs, calves).
Then, I would proceed to put my hands all over her muscles, especially her biceps.
After that, we could workout a little bit together and watch our muscles flexed, and I would measure again her pumped and swollen muscles.
Finally, Finally, I would challenge her to some arm wrestling matches.