Look for incomplete or vague profile sections.
If the listed age looks way off from the posted pictures. Admittedly there are some very young looking older people. So ask about the age if you feel unsure. If you get the usual answer; it was a mistake I'm really xx do you mind? It is easy for you to correct your own profile. Also, you can check the photos easily. Hold your finger on the picture, when the pop-up opens, select the option using Google lense. Look for exact matches. Do this for all of the profile pictures! You may see similar pictures, so look for exact matches.
In 10 minutes I found 5 fake profile matches to me.
Just be careful!
You will see how easily A I can create fake images.
Protect yourself!