I find this a disturbing question. The ladies, and the men as well, want to be told nice things about themselves. They want to be made to feel good about themselves, and want to believe you really love looking at them and in some cases, they want to think your getting off to their photos. The "Thumper" principle works here. If you can't say anything nice, don't say anything at all. As for me, I try to be honest, courteous, and genuinely interested in the lady or gentleman when I make comments. I try to thank them for posting their photos for us to enjoy. Mostly, I hope they read the comments and feel better about themselves afterwards. Anything else, is a waste of words. That's my o opinion at least.