There are many differences,between us..With Dogs.. you can tell alot just by looking, Ears up/laying back… tail curled.or between their legs, head high or in a protective lower stance..kisses, without teeth.. .. Humans are very hard to read..I imagine most of the beings reading this are Humans.. so you Must relate to my confusion…..Words often are used when approaching . yes there are gestures and sometimes out stretched limbs.too ..the tone of the words seems to convey much. some gestures are fast. some slow. and when driving, quick and accompanied by yelling..Humans Hug alot.and they Kisses too ,also without teeth..Dogs tell alot from sniffing.others Tails. when Humans sniff ,it’s usaully not a good sign.and raises the question” What have You been eating”…I have noticed. that windows are asked to be opened…of course they do ask “What’s for dinner ” too…where Our question is” How long ago did you eat/roll in that” or “.Weren’t you over by that bush/tree/wall?……I seem to be adapting….. they should come with a Manual