Edit in JSFiddle

$(document).ready(function() {
    $('#txtEmail').on('blur', function() {
      $(this).mailcheck({
        suggested: function(element, suggestion) {
          $('#spnSuggestion').show();  
          $('#spnSuggestion').html("Did you mean <b>'" + suggestion.full + "'?</b>");
        },
        empty: function(element) {
           $('#spnSuggestion').hide();
        }
        });
    });
});

Email : <input id="txtEmail" type="text" />
<br/><br/>
<span id="spnSuggestion"/>