Second of all, dress more casual and not so 'up-tight' unless you have to. Don't wear ties unless it's some formal event. Simple blouse and jeans work just fine.
Now here is where I have to express some disagreement. I don't
own a pair of jeans, I wear ties all the time for no reason at all, and I end up hanging out with more girls than guys.
You can't just lump all ties together under one category; it's all about the appropriate combinations. There are tie/shirt combinations that look stuffy, and others that look cool in a formal sort of way, especially when you wear a fedora, which, by the way, can work like magic.
Sorry I insulted your shirt, Lib. I'd just never seen one like that before.