What words refer to noticing something?
notice, spot, become aware, detect, note, perceive, observe, conscious of, catch someone's eye, take note,
What words describe someone who is good at noticing things?
observant, perceptive, eagle-eyed, have eyes like a hawk, have eyes in the back of your head, powers of observation
What words refer to not noticing something?
not notice, miss, overlook, fail to notice, escape someone's notice, unnoticed, go unnoticed