Well yes. Comes-ons from people you find attractive who know how to come on to you, are received differently from people you don't find attractive and whose come-ons feel kind of threatening. If a good-looking guy says something flattering to me and seems confident and casual about it, I'm usually okay with that. If an unattractive guy who has clearly been planning out the scenario of coming on to me - typically with a transparent disguise of trying to do me some favour to show what a good friend they are to me - for the past two weeks does it, I react differently. Especially if it makes me uncomfortable to the point I think it's going to be a growing problem with someone I have to work with.
That's how flirting works. Different reactions are given to different people.
So anyway, anecdote time if we're doing this. My general impression, as I've said before on this topic, is that most men I've worked with have been entirely decent nice people. I think it does vary by sector and country. In Germany, I have never encountered discernible sexism ever. I'm sure it must exist, but nowhere I've been. Absolutely great. In the UK, I've only a couple of times encountered real sexism in the IT sector. And in both cases, the attitude of everyone else in the place nipped the sexist people's behaviour in the bud (for which I was very grateful). Amongst Marketing and Sales people, incidences of sexism has been much higher. I think that is a general symptom of the kind of sleazy circles and old-boy network environments of this sector. You get a lot of sexism in marketing and sales departments or companies. The worst sector in the UK, ime, is the financial sector. Here sexism is high and especially, in my brief overlaps with it, in The City. There is a long way to go in eradicating sexism there. But in IT departments in the UK, mostly fine imo. Good, in fact.
The USA has more of a sexism problem. In fact, outside of the Middle East, I think it's the worst. MOST of the people I've worked with in the USA have been alright, but it's definitely a much greater incidence of sexist attitudes I have found there and I've worked in a couple of places where the sexism is very real and has very definitely adversely affected women's career opportunities and earnings. I'm sorry to say it, but I wouldn't particularly want to work for a US corporation again based on some of my experiences there.
Anyway, all the above is anecdotal and only ONE PERSON's experience (mine). So please only take it as that. (Paris, because she's the only discernibly female representation we have in the icons. ;) )