I almost never do.

They don't feel natural.

And not because I'm afraid that they'll call me out for trying to sexualise or being creepy - more because I rarely give anyone physical compliments, so for me it feels forced.

The only time I'll give someone a physical compliment is if I'm doing so indirectly and for a humorous effect 'I'm sure you could get both of us a free drink if you used your pearly white smile to your advantage blah blah' 'a cute blonde with bright blue eyes obviously wouldn't know what it feels like to get overwhelmed with matches on tinder' that sort of thing

Should I make more of an effort to make direct physical compliments though?

Are there any rules of thumb when it comes to giving physical compliments?