app/assets/javascripts/tips.js
$(function(){
$('a.flow_posts').tooltip({title: 'Posts tagged with your subscriptions.'})
$('a.all_posts').tooltip({title: 'All posts regardless to subscriptions.'})
$('a.followed_posts').tooltip({title: 'Posts by users you follow.'})
$('a.notification_link').tooltip({title: $(this).data('title')})
$('div.search').tooltip({
title: 'Search for text, #tag or @username.',
placement: 'bottom'
})
});