nine o'clock
`` Perhaps Don Alonso , Titiri , would know . If you 'll be so kind , tell me where you 're going , and I 'll have Titiri look you up . '' `` All right . You tell him that we 'll be waiting for him at the San Millán café at nine o'clock , '' said Roberto . `` And how are we going to recognize this fellow ? '' asked Manuel . `` That 's so , '' said Roberto .