I don’t know about others, but I have this weird thing where I call cousins my age ‘tum’ while the younger ones I address as aap
There is something else, I don’t know who taught me this and I don’t know who else does this but say I am given a glass of coke from someone else I will always leave a tiny amount left. Bizarre but my head tells me at some point someone told me its a sign of respect? o_O