It's great that you're modest, but you have a lot of beautiful physical traits and you should show them off more often! When you have a date or want to attract a bit more attention, try these:
A fitted blazer in a jewel tone, like dark blue or green. It will look great over a more conservative outfit. Or better yet, show a little skin with a cami or top with a plunging neckline underneath the blazer.
A classic shift or wrap dress. These are both perfect dressed down for the office or a casual date, or you can add jewelry and a belt for a trendier, sexier look.
A sundress with or without a cardigan. You'll feel lighter and look sweet and approachable.
Your favorite jeans with a cool graphic t-shirt or printed top.
Step outside your comfort zone - dressing up is supposed to be fun!