Talk
Reading comes before speaking, and it is faster than you think: Hangul is 14 consonants and 10 vowels stacked into syllable blocks, which is why it is learnable in a morning rather than years. Once you can decode signs and station names, most daily friction disappears. For the moments that still need words, hold your phone up rather than attempting pronunciation — Koreans read the Hangul faster than they parse an unfamiliar accent. In a taxi, an address card showing the Korean road address plus a map link removes the single most common misunderstanding, because spoken place names are where foreign pronunciation fails most often.