My JavaScript:
<script>
$(function(){
$('a[rel=tooltip]').tooltip();
});
</script>
And my HTML:
<br><br><br>This is an example of a sentence with a
<a href="#" rel="tooltip" title="This is the tooltip!">tooltip</a>!
This doesn't show the Bootstrap 2.0 tooltip but shows some default one.
Try adding the code in footer. it worked for me! for some reason it doesn't work in header!