The teenage striker was handed his debut as a half-time substitute during Wigan's FA Cup clash against Bournemouth on Saturday.
The 18-year-old Chilean has joined the Latics from neighbours Manchester United and the Wigan boss is looking forward to him displaying his talents.
Martinez said: "There is such a freshness about his play.
"Angelo's movement was outstanding and his knack of getting a couple of yards in the box gave him a very good chance, which nearly brought him his first Wigan goal.
"I have a feeling he is going to be a real crowd favourite.
"Angelo tries to be very clever. Because he is not the most physical, he avoids 50-50 contact with defenders but his running into space is really sharp and incisive.
"We do need to get to know him a little bit better. Sometimes he made some great moves and we couldn't see him.
"But he will give us a completely different dimension.
"His attitude is incredible. He is a young man with great standards who is desperate to be successful in the Premier League."
Henriquez is likely to be used by Martinez while Arouna Kone is away on international duty for the Ivory Coast during the Africa Cup of Nations.