adjective

(of a person) unrestrained in showing feelings, especially those of affection.

we were a very physically demonstrative family

expressive,open,forthcoming,emotional,communicative,responsive,unreserved,unrestrained,effusive,expansive,gushing,affectionate,cuddly,loving,warm,friendly,approachable,touchy-feely,lovey-dovey

noun

a demonstrative determiner or pronoun.