I just adopted a new cat and I noticed that when I am petting her head, generally she will stop me (with her paw or turning her head toward my hand), lick my thumb or my index finger and let me continue petting her head. My friend told me that this could be because she expects me to bath her while I am petting her head (or somewhat near it).
So my questions is, is this true and why? Or is there another reason why she would randomly lick my finger when I am petting her?