Luke said that the angel told the shepherds that there would be a sign for them (καὶ τοῦτο ὑμῖν σημεῖον) in order to find this baby child (εὑρήσετε βρέφος) that would be a Savior, Messiah, Christ, and Lord. This baby child would be wrapped in bands of swaddling cloth (ἐσπαργανωμένον), lying in a manger (καὶ κείμενον ἐν φάτνῃ). Instead of the sign of a star, as in Matthew, chapter 2:2, they were told about a place with a manger. These shepherds did not bring any gifts with them, unlike the Magi with their gold, frankincense, and myrrh in Matthew, chapter 2:11.
Luke had a special emphasis on these common shepherds in the fields, while Matthew had the important Magi get a special sign or star. Luke said that in that same region of Bethlehem (ἐν τῇ χώρᾳ τῇ αὐτῇ), there were shepherds (Καὶ ποιμένες ἦσαν) living or camping out in the fields (ἀγραυλοῦντες). They were keeping watch over their flock of sheep at night (καὶ φυλάσσοντες φυλακὰς τῆς νυκτὸς ἐπὶ τὴν ποίμνην αὐτῶν). They were doing their jobs as shepherds watching their sheep at nighttime. Perhaps there was a connection between these shepherds and the young shepherd David in the fields of Bethlehem in 1 Samuel, chapter 16:6-13. This may have been Luke showing concern for the common people as expressed in these shepherds.
These magi, because it was more than one, wanted to know where the new born child was (Ποῦ ἐστιν ὁ τεχθεὶς) who was going to be the King of the Jews (βασιλεὺς τῶν Ἰουδαίων). They had observed his star rising in the east (εἴδομεν γὰρ αὐτοῦ τὸν ἀστέρα ἐν τῇ ἀνατολῇ). They had come to pay homage or worship this new king (ἤλθομεν προσκυνῆσαι αὐτῷ). These seem like legitimate questions from these eastern magi for King Herod. They might have assumed that this new king would be the child of the current king, since King Herod had the title of King of the Jews. As astrologers, they had seen this special star in the east. They were outsiders, not Jewish, so that their insertion into this story indicated a universal appeal to the infant Jesus, who was to be ruler of the Jews.