test gist

test.html

<div ng-app="myApp" ng-controller="myCtrl">
<div welcome-customer></div>
</div>

<script>
var app = angular.module('myApp', []);

app.controller('myCtrl', ['$scope',function($scope) {
$scope.customer = {
name: 'Adesh',
address: '100 Broadway, New York'
};

}]);

//our custom directive
app.directive('welcomeCustomer', function(){
return {
template: 'Welcome: {{customer.name}}, Address: {{customer.address}}'
};
});

</script>