After a breakup, the natural impulse is to reach for your mobile phone or your computer and send a hundred text messages at every opportunity or call up every hour.
This is normal but it doesn't necessarily mean that you should succumb to this temptation.
Because if you do, it's going to be more difficult to get your ex to return your calls and worse, he'll just grow annoyed and convinced that breaking up was the right thing - something that you don't want to happen.
  Give it time   Before you start on your mission to get him to talk to you, give it time.
Don't attempt to do this right after the breakup when the pain is still fresh and you're still both reeling from the change.
Give it a few weeks before you try leaving a message - just one message.
Remember that you cannot flood his phone with endless voice messages so what you say and how you say it is crucial.
  The "thank you" message   Once you feel that enough time has passed since your breakup, head for the phone, take a deep breath and leave that message in his voicemail.
Leave a message saying that you appreciate what he has done for you.
It can be about something really small like a favor that he did and you just discovered recently or it can be anything under the sun.
This will get your ex wondering what in the world he did to merit your appreciation and gratitude.
Naturally, he will feel good about doing something good and he will be intrigued.
  The "thank you" message...
meant for someone else   There's also the idea of calling up to thank "someone" for a wonderful night...
even when you never spent an evening with any date.
The idea is to make your ex think that you did.
Pretend like you dialed your ex's number by mistake, and leave a "thank you" message on his machine (again...
"by mistake.
")  That will get his curiosity piqued that he will want to find out who you went out with and why, considering that it has only been a few weeks since you broke up.
You can do this after you go out with a friend so it wouldn't seem that you are telling a flat out lie (at least you really did go out).
  What happens when your ex calls back?   Take note that your behavior when your ex calls back is just as important.
So before you call, create the proper setup and tell yourself that you're not going to throw tantrums when you see him next.
If he ever calls back, don't sound too desperate and simply explain the phone call.