She either got some inside joke involving you (probably a very nasty joke too), or she likes you. But if she's doing it with your best friend, she's probably messing with you for fun
Based on the context given, it is not appropriate to assume that the girl is aroused or attracted to you. Grinning with her best friend simply suggests that she is happy or finds something amusing in that moment. Physical appearance does not necessarily indicate someone's emotions or intentions.
Yes, women are aroused when seeing the penis. However, this depends on how the penis looks and it depends also on how far the woman is religious and/or shy.
Not necessarily. If you have a problem with how your friend looks at you, say something. If s/he is a true friend they will stop.
As a male massage therapist, out of all the 1000+ people i have massage I have never been aroused because of touching a client. A real massage therapist keeps his focus on his work and not what the client looks like. But that does not mean that massage therapist don't get aroused during work, I'm pretty positive some do.
If it is a look that your sexy he is just a player because he is flirting with your friend then giving girls looks or signs.
Not necessarily. While prolonged eye contact can be a sign of interest, it could also indicate curiosity, friendliness, or other emotions. Other cues such as body language, conversation, and overall behavior should be considered to determine if someone likes you.
tell her how nice she looks
tell her that you like her
by the talking and the face and how he looks by the talking and the face and how he looks
it means he or she looks out for the earth.
No, you should never tell a girl her friend looks more beautiful than she does it will make her sad.
it looks like a circle seen slightly on edge
her sister Hisana I have a friend named Rachel who looks exactly like her, I also have a friend named monica who looks just like orihime (she even has the hair pins).