Be sure to mingle with people, and don't expect to spend the whole night by the birthday person's side.

You'll probably go home together at the end of the night, but if it doesn't happen, for whatever reason, don't pout.

The goal: a gift that manages to say “I-like-you-but-we’re-still-getting-to-know-each-other-and-that’s-totally-cool.” It also pays to understand that a small present—something thoughtful, semi-personal, and affordable—is the way to go when you’re dating a brand-new guy. They might have Netflix, but chances are they don’t have Netflix, Hulu HBO Go.

Go ahead and make plans with your friends as if you were single, and just invite your "Significant Other" along.

It's far less pressure on your relationship.*--Written by Chiara Atik for How About We.com*Got your own strategy for celebrating birthdays with the significant other? More from How About We: The Smooth Second Date Move That Works Every Time 5 Things That Are Unfair to Casually Drop On a Fifth Date17 Ways You Know You've Found the One More Ways to Get Glamour: NEW!

If You've Been Dating Six Months Or Fewer, Exclusively So you're a couple, albeit a relatively new one.

Ask early on how they want to celebrate, and plan accordingly. In addition: Some sort of celebration or token of your own is required here.

If you don't participate in a group celebration, some sort of acknowledgement about the birthday is still necessary.

Next time you see the person, have a card, or offer to foot the dinner or drink bill in honor of their birthday.Sure, it's possible they're just not big birthday people, in which case it's perfectly fine to spend the day together without making a huge production out of the birthday.But beware of people who expect you to make big plans for their birthdays too early on in the relationship -- this screams high maintenance, and besides, don't they have friends to do this? If You've Been Dating Three Months or Fewer, Not Exclusively Same rules apply as above in terms of party behavior: if you go to a celebration, be prepared to buy drinks and go home together.If he or she mentions their upcoming birthday in passing, you should casually ask: "Fun, how are you planning to celebrate?" The best case scenario is that they say something like "Oh, probably just doing X with my friends," which makes it clear that you won't be really expected to join in or participate—which is fine.DO: Take him out to dinner, maybe for a drink after.