Speaking for speak, A.V.; fastening his eyes upon for stedfastly beholding, A.V. (see above, Acts 1:10; Acts 3:4, etc.); seeing for perceiving, A.V.; made whole for healed, A.V. Heard. The force of the imperfect ἤκουε would, perhaps, be better given by "listened" to Paul speaking.
There is great resemblance between this miracle of healing, and that of the lame man laid at the gate of the temple, who was healed by Peter (Acts 3:2-10), and, not unnaturally, considerable identity of expression in the narratives.
Both men were lame from their birth; the apostles fastened their eyes upon both; both, when healed, leaped and walked; and in both cases the miracle 'had a great effect upon the multitudes who beheld it.
Zeller, with characteristic recklessness, infers that "this narrative was, merely in imitation of the early miraculous story of Peter;" and so relegates both it and the subsequent narrative to the regions of fable.