ЧУВСТВО _|_ FEELING CHUVSTVO [ˈt͡ɕustvə] / ЧУЯТЬ _|_ TO SMELL CHUYAT [ˈt͡ɕʉ(ɪ̯)ɪtʲ]       

Hint with an alternative definition: any of the manners by which living beings perceive the physical world, or it is an ability to watch, to scent a stench, to chew (feel a taste), to touch (and ouch), to hear a chirm (sound) or even to feel a hunch (intuition) = chary sense of any change of environment. 

Hint with composition: choosy + sense stuff = чувство

Hint with a mirror: to vouch (to trust without proof) | чув… (to trust your feelings only)

Russian tip: чуять если что-то чуть-чуть или чересчур изменилось / учуяв |в… я учу (разум, а не чувство)

Mental visualization: Ч (nose) + У (ear) + Я (tongue) + T (hand) + Ь (eye)