I dont think this is the right thingy to post this on, but i just need the information know where else to go, for context, me and my sister are <14 i know its young, and my brother is 17, this wont be grammatically correct there will be spelling mistakes lol, sorry

So basically me,my sister,my brother, and my grandpa were in a store, paying for whatever we got (cant remember) and some random old guy who looked aleast 60 (btw we were at self check out) said something along the lines of 'that one doesn't work' and my gramp (what i call my grandpa and what ill refer to him as) said 'i can see that' the man, whose name i dont know so ill just refer to him as 'the man' saw me and said 'you look like Georgia ' i just smiled and nodded, mind you i live far away , i dont know this man in any way,i was staying at my gramps, and the man kept saying how i look like his neighbour Georgia, (ngl i feel sorry for Georgia) and here is where i think i might have stepped out of line a bit, he was touching the top of my sisters arm (elbow to shoulder) and i said 'Ellie come here' gesturing to my side, i was stood behind my brother holding his hand (im really paranoid all the time, and btw ellie is my sister) so basically im asking for insight on the situation and if i stepped out of line by physically standing behind my brother and asking my sister to come over (i know i didnt explain this well)