You're not leaning into her. You're just leaning towards her ear and when you do that, move your body closer to hers. When you talk into her ear, let your lips gently touch her ear like you're nibling on it and when you pull away let your cheek brush hers as if you're going for a kiss. Last saturday went on a random night out with 5 other guys for bowling but ended up on a bar marathon, used that method and got 3 #close and one of the girls was a graduate in acting and gorgeous to boot.