Men have legs too! Hosiery, tights and leggings are unisex garments.
How do you do a reverse image search? I only know about google.com/images.
Don't over rate this method of researching a profile. Many people associate a picture that does not belong to them and use it for an avatar, etc. Unless you meet someone face to face, you can only guess upon their image. Unless you get to know them over time, you can only guess upon their personality. So, all the detectives here in this forum probably know about the same as you do about the others. We can only hope people are being honest and sincere about who they are.
tineye.com is one such method.