Edit in JSFiddle

<body ng-app ng-init="firstName = 'Max'; lastName = 'Joe';">
<strong>First name:</strong> {{firstName}}<br />
<strong>Last name:</strong> <span ng-bind="lastName"></span><br />
<label>Set First name: <input type="text" ng-model="firstName"/></label><br />
<label>Set Last name: <input type="text" ng-model="lastName"/></label>
</body>