• He demonstrates friendly affection by using nicknames and inside jokes.
• He stops talking to you about other girls.
• He asks that you make a pact: If you’re both unmarried by age 30, you’ll agree to marry each other.
• He lets you know that he thinks you’re a catch. When you complain about other dudes, he’ll mention that if he were your boyfriend he would never treat you that way, and that you deserve better.
• He’s always been a great shoulder to cry on. But if he’s getting interested in you, you’ll see signs of his patience wearing thin. He may act mad at you if he sees you go after another guy, although he’ll categorically deny it when you ask him if you’ve done something wrong.
• He becomes curious about what you like in a guy. He may ask you outright what you’re looking for, or he may ask you what you see in some douchebag you’ve got a crush on.