How To Give A Tip To A Karaoke Dj

How should I give a tip to a karaoke DJ?

I don't want to know how much a person has tipped me, because I don't want to judge that person by the amount that they have tipped me. I've seen people borrow money to tip me, and that means a lot more to me than a person who reaches in and has a lot of money. If you're going to slip the KJ some money, and you want to make it personal, feel free to go ahead and walk up to him after he's already introduced a singer and do the secret handshake.