i am confused here. people are saying wait it out because he doesn't want to appear too eager. Okay, that's fine, I get that. But why say you're going to call on a particular day, and then don't? I don't think that's a pretty intelligent thing on the guy's end, regardless if he's trying to play it cool or not. I would take that as a signal that, "hey, calling you isn't something I put on my priority list. I didn't feel like talking to you so I didn't. ultimately I am not interested. perhaps you'll get the hint this way?"
unlesss you genuinely were busy and forgot. but you'd have to remember eventually, and if you like the person, I would think you'd at least text later to say, "hey sorry, I was caught up in some stuff. talk to you another time."
if I don't like someone in that way, but I say I will call on that day, I will call. it's the polite thing to do, whether you';re interested or not. unless you really didn't want to reject the person, and then you wanted to give them subtle hints. but I would feel too mean.. so I would still call...
i've known guys to play it cool and eventually call/text. but they never said they were gonna do it on a particular day and then blew it off. if they did that, I would assume disinterest automatically. you like someone -> you say you will do something -> you do it. or you do it because you're polite. but I don't see why you wouldn't do it, if you were interested?
aaah maybe I'm just confusing myself here. you guys and playing it cool, it's frustrating!