“Sir, my face is up here!”
“Well… your boobs are down there.”
If you are a man that’s into women you will probably look at them, that’s perfectly natural. You have to keep in mind that women are more than just cleavage, it seems obvious but sometimes you have to say the obvious. I know it can be hard but you have to try. Because if you always look below the neck of women you will be considered as a chauvinistic pig or “That guy who always look at my [blank]” or something worse.
Of course you can check women out but try to do it casual and subtle and people will consider you “normal”, hopefully.
Image from here.