No need. It can't be helped. [He shrugs his shoulders and continues walking, smiling slightly to himself. It was possible he wasn't there, or this boy just hasn't met him yet.]
...How rude of me. [Turns again and faces him.] I neglected to introduce myself. Muraki Kazutaka. [Outstretches a hand.]
[action]
...How rude of me. [Turns again and faces him.] I neglected to introduce myself. Muraki Kazutaka. [Outstretches a hand.]