Why does my cat grab my hair and lick it?

Is it OK for a cat to lick my hair? Therefore, grooming is only an expression of feline love! Your cat will groom your hair most frequently while you are laying down or asleep because he views these times as appropriate for "affection grooming. If, however, he prefers to "groom" or "eat" your hair while you are engaged in physical activity, it is more probable that he is being playful.