How to promote dating offers for free 2017-18?

hey guys,i want to promote dating offers for free.i find out some way like chatting in different adult site.But no one agree to compelete my offer.in which way i should present myself and how i should ask them or what scenario should i describe or what should i do to make them create a account in a dating site and please name some good site from where i can get free dating leads.It would be great favour for me if you can help me out of situation