Final consonants k, q, and t change if a suffix is added that places the consonant between two vowels.
For example, çimərlik is Azerbaijani for beach. If you say you are going to the beach, çimərliyə, the K changes to a Y.
k to y - göbələk + ə = göbələyə
q to ğ - ayaq + a = ayağa
t to d - eşit + irəm = eşidirəm
However - it does not happen to a single syllable word such as kök (carrot), so kökə (to the carrot). As well, doesn't happen if the word is Russian. I find Russian words often sound, well, Russian (hem!) or English, so they are easy to spot. Definitely bear no resemblance to Azərbaycanca!