GPlus Quickstart

<div id="gConnect">
    <button class="g-signin"
        data-scope="https://www.googleapis.com/auth/plus.login https://www.googleapis.com/auth/userinfo.email"
        data-requestvisibleactions="http://schemas.google.com/AddActivity"
        data-clientId="ThisIsWhereTheClientIdGoes"
        data-accesstype="offline"
        data-callback="onSignInCallback"
        data-theme="dark"
        data-cookiepolicy="single_host_origin">
    </button>
  </div>

//Scopes in the handler
 IAuthorizationCodeFlow flow =
                        new GoogleAuthorizationCodeFlow(new GoogleAuthorizationCodeFlow.Initializer
                        {
                            ClientSecrets = secrets,
                            Scopes = new string[] { PlusService.Scope.PlusLogin, PlusService.Scope.UserinfoEmail }
                        });