I mean the fact that they tend to have abnormally long arms and legs and lean forward at the waist to accentuate this even more. Why? This one is typically with guys.
only clamp has this from what i've observed. and "lean forward at the waist"?
I see that in japanese live action too. probably a cultural thing.
Have a look at the KimiTodo male character designs, Ryuu for example 
hmm, you're right. seems to be typical on shoujo's.
CLAMP is an all-female Japanese manga artist group that formed in the mid 1980s.
I think we have enough artists for the guys, so don't mind seeing what the women artists' prefer. It's a good to have variety than all having the same style, such as Disney.
you sure hate disney, don't you? Mickey mouse raped you in Disneyland?
lame jokes aside, to cite an easy example none of the Disney Princesses have the same body type.
and Disney's character design over the years have a rather great variance. no need to cite examples, really.
I have some similar wonderings as OP or maybe not that similar but wonder about slice of life things I oberve in anime vs reality.
Im just curious wether its some Anime thing or if all these supersitious things are based on reality in japan.
Sneasing
Is it common in real japanese life that you think somone else is talking about you if you snease?
Sickness
Is there normaly somone sitting next to you placing a towel on your forehead and serving you rice porridge if you´re sick in japan?
Bathing
Is it normal to always play pingpong and drink a bottle of milk after having a hot bath in japan?
There are probably more things I cant think of right now that I always notice and wondered wether they are real culture or anime culture.
what the hell is "Sneasing"?
Yes, there's also this thing called
Kool Fever.
also, it should be obvious that porridge is easy to eat and healthy(depending on what you put in it
so it's perfect for sick people. >_>
I wouldn't know, but given it's prevalence it might be. even if it's just real people imitating it from anime, lol.