LADIES! Do you find it insulting if you're out with your man and he is constantly checking out other women?

I am not talking about men who just glance and then carry on talking to you or continue their attention towards you.
I am talking about being out with your man anywhere, supermarket, the street, a cafe etc.

IE: You’re sitting somewhere and a group of females walk in, he glances up to look at who it is, and continue to check each and everyone out. He gives a sneaky smile while you’re not looking, knowing this is going to annoy you, but does it anyway.

How does this make him look to those women?
If after you have already asked him not to do this in front of you, but your plea’s seem to fall on deaf ears.