Many learners say human as "YOO-man" (dropping the H) or as "HOO-man" (dropping the Y). Native speakers do neither. They pronounce a two-part onset: a real puff of /h/ immediately followed by a /y/ glide, written /hj/.
So human is HYOO-man, huge is HYOOJ, and humid is HYOO-mid. Get both pieces in and the word snaps into place.
The Rule
When H is followed by the "long U" sound /juː/ (usually spelled U or EU), you say /h/ + /j/ together. Start with a light breath of H, then glide through Y into the vowel: human, huge, humid, humor, humane, humid, humiliate, hue, Hugh, Houston (the city). Feel it as one smooth motion: h-yoo. Unlike after T, D, or N (where Americans often drop the Y, saying "toon" for tune), the Y is never dropped after H.
Practice Words
Do Not Confuse These
Two other H patterns look similar but follow different rules. First, some words have a truly silent H: hour, honest, honor, heir (and herb in American English) begin with the vowel sound, no /h/ at all. Second, humble and humbug use ordinary /h/ + /ʌ/ ("HUM-bul"), not the /hj/ glide, because there is no /juː/ vowel. The /hj/ rule applies only when the "yoo" sound follows.
Quick Tip
Whisper the word you, then add a small H in front: h-you. That is exactly the start of human and huge. If you can hear both the breath and the "y," you have it.