Let's be honest, Valentine's Day is awkward for almost everybody. But it can be even more uncomfortable when you just started seeing somebody and are still in the "getting to know each other" phase. However, there are some ways to get through this holiday when you're not in an ultra-serious relationship.
Have realistic expectations. Some (very few) people go all out on Valentines Day, even when they are casually dating somebody. But, let's be honest: if you've been seeing someone for a month of less, chances are the whole flowers/candy/expensive dinner/jewelry thing probably won't happen for you.
BUT, don't just avoid and/or ignore the holiday all together. That makes for a very awkward and rough start to a relationship. Instead, bring it up to your boyfriend/girlfriend/"friend" and have a mature conversation about your plans.
Start small. Think: a nice (but not too expensive) dinner, bringing your girlfriend a modest bouquet of flowers, writing your boyfriend/girlfriend an endearing but light-hearted note, making a mixed tape/CD etc. You get the point.
Don't be sad or insulted if your new flame isn't too over eager about celebrating the "Day of Love" with you quite yet.
Finally, on February 14th, dress the part, put a smile on your face, and don't act uncomfortable at all. Just have fun! If you do this, your new relationship will survive Valentines Day without the added pressure the holiday normally brings on!