What did the lame man do immediately after being healed?
He walked into the temple with Peter and John, "walking, leaping, and praising God"
(Acts 3:8).
Did the crowd take notice?
"All the people saw him walking and praising God"
(Acts 3:9).
How did they react?
The donors don't seems to have asked him for their money back even though "they knew that it
was he who sat begging alms at the Beautiful Gate of the temple were filled with wonder and amazement"
(Acts 3:10).
How did this healing serve God's purpose?
It showed His mercy on a lame man, He received praise, and He gathered an audience for Peter's sermon to follow.
What was the "porch which is called Solomon’s" (Acts 3:11)?
See
Solomon's Porch.
What does this imply about the timing?
They were now outside the temple, so it was after the ninth hour (3 PM) prayer.
To whom did the crowd attribute the miracle?
To
Peter and John: "Men of Israel... why look so intently at us, as
though by our own power or godliness we had made this man walk?"
(Acts 3:12)