If she's a classmate or a co warker then always greet her and ask her how she's doing. Ask her what kind of movies or music she likes. If she's someone you don't really know then start a coversation that's neutral like the weather or something like that and just try to lengthen the conversation and let her know that you are really interested in what she has to say. That always works for me :-)
Some guys do send signals. Others do not. It really depends on the guy.
Well if you can most definitely tell that she doesn't like you, try more than likely not to send signals. If she doesn't like signals sent from someone she doesn't like and she thinks they are offensive (everyone is different) then bad things will happen
Yes they do send out signals
No, nerves do not send signals. They transmit signals produced by receptors or the brain or spinal cord.
like your brain, it send certain signals to the designated parts, which in turn responds to the signals and act appropriately.
send signals
text him
Radio frequency signals.
this is a silly question. Mixed signals are a two-way street, I would just as quickly ask you; Why do women send mixed signals to men?
neurotransmitters send signals from neuron to neuron
Broadcasting stations use television satellites to send their signals around the world.
It is a hormone that sends signals to the brain that tells you "she's cute" kind of feeling.