 <translate> The fact that the lady is rading a birthday card doesn't imply she's laughing to herslef while she read the funny birthday card. So the answer is it is not possible to tell. <yor> Òtítọ́ náà pé obìnrin náà ń fi káàdì ayẹyẹ ọjọ́ ìbí rẹ̀ ṣe nǹkan kò túmọ̀ sí pé ó ń fi ara rẹ̀ rẹ́rìn-ín nígbà tó ń ka káàdì ayẹyẹ ọjọ́ ìbí tó ń pani lẹ́rìn-ín. Ìdáhùn rẹ̀ ni pé kò ṣeé ṣe láti sọ. 