Sometimes people say random stuff - other times I do! I get the genius tag a lot because I think quickly and just happen to know stuff. It's strange though because I used to have problems speaking (I have Mercury square Saturn aswell). Now I don't STFU these days
. Mercury square Uranus tends to indicate putting your foot in it a lot by saying things very bluntly without tact and being rebellious just for the sake of it. I notice the traits in myself.
I find people also feel comfortable telling me personal stuff and asking for advice a lot, but that might be because I have Moon in Aquarius (also sextile Uranus and Saturn).
Yeah, Libra tends to be associated to classic beauty, while Pisces tend to be all over the map with regard to the things that attract them. It's the Aquarians I find tend towards the unconventional. All the air signs tend to produce good looking risings.