hey girls I need your opinions on this one. look, I like to show girls my muscles to impress them. every time I flex my biceps they start to giggle. what does that mean? do they like it? are they aroused or amused? I can't really tell. would you be impressed if a guy flexed his muscles? if not, what do you find impressive?
Show off, I'm not that superficial. I find men who are okay with themselves impressive, they don't need to "show" me anything because they are wonderful just the way they are. I find men who have a passion and do very well in them very impressive. (It could be a talent, it could be academics, it could be anything, this shows that they are hardworkers and dedicated).
if you have to flex them it looks gay but if they put their hand on you, or hug you if you tense up your muscles a bit it makes you feel even more ripped than you are (and I hear that's fairly attractive, being strong)
As long as you're not being overly arrogant or douchey, they will like it. They giggle because girls tend to become bashful and timid when a hot guy shows his body off to them. If they blush and laugh, you're doing something right. And what they find impressive is sincerity and confidence - just being yourself.