Okay so I've had my eye on this guy that I kind of had seen from mutual friends but hadn't met. I was invited to a birthday party that I was pretty certain he would be at. I casually introduced myself at one point and he was friendly back. Since it was our first encounter we didn't talk much but I smiled , etc. throughout the night. Then this past weekend(Saturday) I went to the same mutual friends Holiday Party and he was there. He saw me and remembered me and started talking more with me. Later he asked me if I wanted to go somewhere we're we could talk better where it wasn't so loud (music). Of course I said yes. We went outside and talked for about 10 minutes. Exchanged number. He said he would call the next day(yesterday,Sunday) at around 2pm. 2pm had passed I thought to myself…another typical guy he’s not going to call. But he did around 5:30.We talked for a good hour. He asked me a lot about myself. He said he had to go but asked if he could call me back later that night around 10.I said yes. He never called back? He did however earlier in the conversation ask me to send him a picture to keep on his phone and I did. He sent me one back past the time he said he would call but never text or called. Is he interested? Or did I possibly say something to scare him off. I honestly don’t think I did though. Is he just playing it cool or slow? Or maybe “just not that into me” How long should I give him?