What's nice about Greeter games

I guess this applies to all unrated games but I don't play any of those except my Greeter games. In the Greeter games, I play openings I don't trust in rated play or am just unfamiliar with. In Greeters, I always play 1.....d5 in response to 1. d4 when I usually respond with 1....Nf6. I have been playing 1......e5 instead of my usual Sicilian in response to 1. e4 but starting now I play to bring out a dark knight and play 1......Nc6 for at least the rest of the year.

good idea to try out unfamilliar openings.
I like playing greeter games because you don't know the level of the opponent.

That's true. While most games end after 1 move or less, I've had a few real battles.