Don’t be rude to anyone.
Don’t be shy to speak English.
Don’t be silly, be sensible.
Don’t be stingy, be generous.
Don’t’ behave like a child.
Don’t believe in superstitions.
Don’t believe everthing you see.
Don’t’ blame me for your mistake.
Don’t build castles in the air.
Don’t call me on this number.
Don’t change yourself to others.
Don’t come unless I phone you.
Keep your voice down.
Keep your room clean.
Keep your shoes out.
Keep me in the loop.
Keep me updated.
Keep everything ready.
Keep your eyes on my house.
Keep your advice up to you.