In today's reading St Joseph is the protagonist:
We note two qualities in this passage: (1) He was open to hear the voice of God, and (2) he was prompt in obedience.
Practically speaking, being open to hear the voice of God in our own lives usually requires certain habits, among which we may list: (1) devoting adequate time to prayer, including silence in prayer when we can let our heart be moved by God; (2) reading and meditating on Scripture, through which God speaks to us; (3) the counsel of a holy confessor or spiritual director; (4) the practice of penance and (at least small) mortifications, through which we develop detachment from the material goods and pleasures that often dull our spiritual senses.
Hearing the word of God for us must lead to action, however.
St. Joseph sets an example for all Christian fathers in particular, and for all believers generally, of how to hear God’s Word and obey it. St. Joseph, pray for us!