You may think 'Oh, baby!' is a perfectly adequate way to convey how awesome your girlfriend is in bed… and it is. But to make her feel how totally smitten you are, you need to throw her name in now and then. Overdo it and it'll sound rehearsed, but hearing it every so often will stroke her ego, just like hearing her whisper (or scream) your name boosts yours. 'Say it once, and look at her when you do,' says Dr Ava Cadell, clinical sexologist and founder of loveologyuniversity.com. 'She'll feel more attractive if she knows you're focusing on her.'