Edit in JSFiddle

 var i = 0;
    $("div.overout").mouseover(function(){
      $("p:first",this).text("mouse over");
      $("p:last",this).text(++i);
    }).mouseout(function(){
      $("p:first",this).text("mouse out");
    });

    var n = 0;
    $("div.enterleave").mouseenter(function(){
      $("p:first",this).text("mouse enter");
      $("p:last",this).text(++n);
    }).mouseleave(function(){
      $("p:first",this).text("mouse leave");
    });

<div class="out overout"><p>move your mouse</p><div class="in overout">
<p>move your mouse</p><p>0</p></div><p>0</p></div>

<div class="out enterleave"><p>move your mouse</p><div class="in enterleave">
<p>move your mouse</p><p>0</p></div><p>0</p></div>

div.out {
width:40%;
height:120px;
margin:0 15px;
background-color:#D6EDFC;
float:left;
}
div.in {
width:60%;
height:60%;
background-color:#FFCC00;
margin:10px auto;
}
p {
line-height:1em;
margin:0;
padding:0;
}