No. If you know he saw your text and didn't answer it, do not text him again.
If he has asked for your number you should wait for his text or call. Do not text him first.
If your conversation is flirty, yes..
if you talk to him then yeah, but if not..then no.
To text your crush and ask how his day is going allows him to know that you are thinking of him. That you care and like to know he is having a good day.
Don't text them anymore
I want your body
Only if you want to get hurt again.
It means that they aren't interested.
Ask for the number; it will save time and worry on your part.
Be confident, and go ahead and text him! but make sure you don't double text him in the amount of time it would take him to have a nap. unless your finishing a thought or he texts back.
That you should never text him ever again and never ever text him first.
Keep rolling a text book over it.