What are some other never can tell tricks?

One is a stick trick. Get multiple sticks and arrange them in random shapes. Ask the other person what number it is. You should be showing the number unobviously with your finger or foot (EX. If I have a hand on the table and one foot out, the number would be six).

Another trick is a gun game. You make an imaginary gun with your hand and point it at random spots saying "BAM". When you stop say "who did I shoot?". Whoever makes any noise first not necessarily even playing in TE game, is the one you shot. You might be pointing at yourself when someone starts laughing. So the person who's laughing is still the one you shot.

Another one is "silly Sally". You would say something silly Sally likes and doesn't like. Whatever she likes has to have double letters like spOOn.

EX. "Silly Sally likes spOOns, but not forks"