This is the most common use of a collection presentation:
@if($collection->isEmpty())
<h2>No items were found</h2>
@else
<h2>The following {{$collection->count()}} items were found</h2>
@foreach($collection as $c)
{{ $c->someAttribute }}
@endforeach
@endif
Now specifically for $errors:
@if($errors->any())
<div id="error-box">
@foreach ($errors->all() as $error)
<div>{{ $error }}</div>
@endforeach
</div>
@endif
Remember to pass correctly $errors to your view after the validation has done its job. So in your controller:
$rules = [...];
$v = Validator::make(Input::all(), $rules);
if($v->fails())
{
return Redirect::back()->withInput()->withErrors($v);
}
...