If you kiss someone on the neck or throat, and open your lips slightly and suck hard, you will cause a distinctive bruise known as a 'love bite', or what Americans call a 'hickey'. If you use your teeth to actually bite the skin, the teeth marks will show as slightly darker bruising in the centre of the redddish / prurple bruising. They are not big or clever, to donate or receive.
you can allways give someone a fake if your mean enough,just wet your first and second finger in your mouth ,pinch them on the neck and twist vigorously.
The'yre not always deliberate you know, some people just get caught up in the passion! Personally i dont mind if someone leaves one on me, as long as its not a huge ****** that lasts for 3 weeks!
Surely this isn't something most adults get many of!!!........it has to be mostly seen on the necks of 13/14 yr olds on street corners, drinking cider!!