can you tell me if my friend's sister wants to go out with me(more signs)?

Question

Can you tell me if my friends sister wants to go out with me?
Are these signs that she wants to go out with me:

1. she always comes to talk to me even if I'm not walking in her direction at all.
2. she always yells, "Hi, Josh!" whenever she sees me in the halls(that's my name).
3. She never talks down to me, ever.
4. she asks me to help her with stuff when she doesn't even seem to need help with them at all. (Example: she asked me to help her find her brother, but when we found him, she just walked away without saying anything to him.)
5. when I do something stupid with her two brothers and she yells at us and stuff, she NEVER looks at ME.
6. she has become friends with all of my friends.
7. she looked away sadly when I gave one of her female friends a friend-to-friend hug.
8. she got mad at her brothers for something she thought THEY did, but actually I was the one who did it (i called her while we were both watching a talent show for school). I told her I did it, and she just walked away.
9. She put her cell # in my cell phone herself.

10. She came into my house a (long time ago) and started going through my laundry while I wasn't there.
11. She always invites herself into my games of hacky-sac, which she isn't very good at. She will just keep playing until I quit.
12. She held my wrist(NEAR my hand, but not quite) to sneak me into an R-rated movie while saying, "He's with me!"

Answer 1

You left out your ages. If she can get into R-rated movies then maybe she is too old for you. However, from all the signs then yes she seems interested in you, unless you are really a lot younger than her, in which case she might just think of you as a little brother. When I was nearly 18 I started dating a guy that was 2 years younger but he was mature for his age and I was kind of immature I guess.