うれしそうに の訳語→ agreeably cheerful contentedly expectantly fondly gaily gladly gratefully heartily
にこやかに の訳語→ affably amiably brightly friendly indulgently kindly lovingly nicely personable pleasantly richly smiling
愛想よく の訳語→ aggreeable charmingly cheerfully cheerily genially gregariously hearty hospitably obligingly politely sociably suavely winningly