1) When you see some one you haven't seen in a while so you text them so you dont feel bad and your not being rude
2) When you get someones number and you text them for like a week and then just stop, so your not the jerk that "didnt text me"
1) I saw Joe at the mall so i sent him a courtesy text
so he wouldnt think i was ignoring him.
2) I need to send that chick from the fair a courtesy text
so if we meet again she wont slap me.