Signs
Both cars pass on the left. Another way to look at it is that the cars won't pass each other at all. They will both turn before they reach each other.
look
I don't think you have to tell them anything. They will know by how you look.
Look up the 'chart of the nuclides'.
no
Look before you leap.
both ways and ahead for traffic before proceeding look both ways before turning (left and right) Though traffic signals at intersections may provide a reasonable guide by which to estimate traffic patterns, do not rely on them to protect you from motorists running through red lights or STOP signs. Always look left, right and left again before entering an intersection.
Look...before you leap
Before purchasing an antioxidant supplement, you should find out whether the supplement is FDA approved. Another thing you should look for is previous users of the supplements.
Otherwise you might have to look after leaping, if still alive!
Before. I did it before and it works
before you do something you should give a second thought.