Inside jokes are also totally great. Then, set an alarm with a headline that lets her know to check her notes. It's guaranteed to make her smile. 9. By knowing how to make a girl smile over text you can keep a girl thinking about you in a positive way. And the more she's thinking about you, the more eager. Before going into our 50 list of sweet things to tell your girl to make her feel I love the way you smile ; You look so cute when you blush; You understand me so.