Giving instructions

Make sure...
Remember... (to do).
Be careful... (not to do).
Don't forget... (to do)
Giving directions
Go straight on.
Take the first/second on the left / right.
Turn left / right.
Go along... as far as...
Take the number 7 bus / tram.
Get off (the bus / tram) at... (place).
Carry on until you see...
Look out for...