\n1. Pump Up Your Girls

We're not saying you need to break a sweat, but doing a quick chest exercise when you're getting ready can actually make your boobs appear larger. Try this one from celebrity trainer Ashley Conrad (her clients include Kristen Bell and Penelope Cruz!): Grab two 20 oz water bottles and lie down on your back, knees bent and feet flat on the floor. Extend your arms out directly to the side (hold one bottle in each hand), so you're making a "T" shape. Keeping your arms straight, lift them so that they meet in the middle, right above your chest, then lower back down to start. That's one rep; do 25. This move tightens the bottom of your pectoral muscle, which will give your twins a noticeable lift.

2. Try This Shameless Bra Trick

It's simple, but so effective—just make sure your bra is always on the tightest hook. The reason? Eighty percent of your bra is held in place by the band (not the shoulder straps). So to flaunt what you've got, you need to make sure that band is supersnug, says Gayvin Powers, owner of Eve's Apples, an online bra boutique. It may feel tight at first but soon you won't notice the snug feeling—especially when you notice how happy your date is.

3. Brush On Killer Curves

A little makeup magic is all it takes to take your decolletage from hot to downright magnetic. According to Riku Campo, celebrity makeup artist, bronzer is key to creating the look. Just sweep it from the outer corners of your boobs down along the inner edge—think of it as a half-moon shape—and you'll instantly contour a seductive bustline.