I'm horrible at reading signs

[thirdofsix]

now there isn't one specific situation i am asking about, this is just about curiosity and i am on this forum for another reason and thought this might be a good place to ask my questions. i'm 23 if that matters.....

everyone says that guys are bad at reading signs. but i guess i am especially bad... unless someone tells me straight up "hey, i like you", i probably wouldn't be able to tell. I am a friendly guy and i like to be friendly towards everyone, including all the girls i know. I text them to ask about them, i call them to ask how their exams went, if they are having a bad day i'll give them a bag of chips or chocolate or whatever i may have at the time, or if i'm out with friends, i'll pick up someones tab if they forgot their wallet or something like that, and i have never asked for repayment (if they hand me money to pay me back i dont say no, but i never remind anyone that they owe me $5 for last week's lunch). so if someone (including girls) is being friendly with me, i automatically assume that its just being friendly because i am the same way towards them.

so my questions are
1. should i be less friendly towards my female friends?
2. how can i tell the difference between when a girl is being friendly and when she is giving me some kind of invisible cryptic message that she likes me?
3. and here's one i've been wondering since i was a kid: do girls really poop?

[Negan]

Hahaha, look at "2 girls 1 cup"

Anyway, I'm really bad at this as well. I immediately assume that if a girl is being friendly, she likes me O.O. And the reason why no girl will ever tell you "Hey, i like you" is because they always expect the guy to make the first move. Ugh, it sucks.

[Stillits]

Haha to be honest, your female friends probably feel the same way about you. If anyone of them has a crush on your they probably are in doubt whether you're just being friendly or you actually have an interest in them.
From me a sign of interest would be physical contact, like touching his arm etc. (and paying more attention to him/initiating contact).

[thirdofsix]

i heard about that nasty video, and wish that i never ever have to see it. ever

well, i have no physical contact with anyone except the occasional hug.... no arm touching or anything like that though