Angelic babe, from the perspective of a guy who goes out and socialises atleast 3 nights a week at clubs, bars etc, there some a couple of things that REALLY make the difference when it comes to attracting guys. One of which you already mentioned, dressing to look sexy but not slutty.
I'll put some of the important points in dot point form (makes it easier to read)
- GREAT eyecontact. When you see a guy, prolonged eye contact REALLY gets a guy curious (although this is a common female technique so I'm sure you know it.)
- Nice smile. Smile when you make eye contact. MOST guys aren't very interpreting your little shows of interest and won't understand what prolonged eye-contact can potentially mean. Smiling makes it that much more obvious to the average guy.
- Be FUN and Playful. If the conversation seems to be heading towards the boring "so what are you studying?" or "what school did you go to." then change the topic to something more unique and interesting. This can be something strange that happened to you today, a crazy thought OR simple flirting. REMEMBER you can't bore somone into feeling attracted to you. So while guys are initially curious about you from your body-language and looks, if you can't hold a conversation, then most guys will just give up and go looking for more interesting people.
- if he compliments you or does something nice for you then show him some respect. There is nothing more loved by us than when girls show them admiration and respect. So for instance he says, "YOU ARE CRAZY LIKE ME! I like that about you." then you can respond with a similar show of interest. "Are you thinking what I'm thinking B1? Crazy adventure!

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- Also playing hard to get TO AN EXTENT. Too little and high value guys will lose interest. To much and guys will give up because they can always find a lovely girl who aren't just teases. Just right and guys will go insane.
Enjoy
PS. My mum warned me about girls like you, with your "techniques" to lure guys. Not so "angelic" after all. I can't even talk to you anymore!