..Trick spya tau nick kita masi ada di contact temen apa ga..

bwt mengetahui nick km masih ada to gak di contact list teman km, caranya
test aja nick dia dengan buzz
Kalo muncul teks "do you want to buzz" artinya nick km masih ada contactlist dia
tpi Kalo muncul teks "sorry,you are not able to buzz" artinya nick km dah ga ada di contactlist dia/nick km sudah di delete