Wonka: I would probably sign up for 3 months for starters - then see where it goes. Get clear with yourself the type of person you are interested in and make your profile fun and interesting. Most people are looking for new matches so you will get more action in the beginning.
Most people are most comfortable meeting for coffee to get to know someone without a big investment of time. I used my cel phone joy & only my first name. I was very cautious & if anything felt "off" I cut off contact with that person.