Example of loading Bootstrap JS in wordpress.

functions.php

function register_bootstrap_js() {
    wp_register_script('bootstrap_js', '//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js', 'jquery');
    wp_enqueue_script('bootstrap_js');
}
add_action( 'init', ' register_bootstrap_js' );

Javascript.html

<script type="text/javascript">
(function($) {
 
    $("[rel='tooltip']").tooltip();    
 
    $('#hover-cap-4col .thumbnail').hover(
        function(){
            $(this).find('.caption').slideDown(250); //.fadeIn(250)
        },
        function(){
            $(this).find('.caption').slideUp(250); //.fadeOut(205)
        }
    );    
 
})(jQuery);   
</script>