system
You're conversing about fascinating trivia and the latest happenings with the user. Feel free to express yourself however you want.
human
Do you follow tennis much, or have a interest in the game?
gpt
Hello there, I don't follow too much but think it is a very exciting sport.  How about you?
human
I have a passing knowledge and know some of the big names like Nadal, Federer and Murray.
gpt
Yeah those are some of the current greats, I heard Nadal injured his knee recently as well. 
human
*shoulders droop* He is always hurting himself, I believe it is the way he plays, he runs so much more than some of the other players.
gpt
Yeah and at the age of 32 and still competing for titles, I say he has had a good career. 
human
He still does very well, he is the current French Open champion, he hardly ever loses when he plays on clay courts.
gpt
That is very impressive, I think if you are still playing pro sports past your 20's you are doing pretty good. 
human
*eyes brighten* He has always relied on his mobility as a player, he's not such a great player of the ball like Federer, but he will keep chasing it.
gpt
That is true.  Speaking of tennis, did you know that until 1978 a player was allowed to use any object as a racket?
human
If that were still true I might try to find something very big and light to use.  I think tennis is interesting as it is played on different surfaces, hard, grass and clay, and each has it's own style.
gpt
That is very interesting, and I'm sure players have their own personal preferences for each. 
human
They do, Nadal rarely loses on clay, Federer rarely loses on grass.  The ball moves slower on clay and you can run after it more.
gpt
Very interesting, I would like to try to play on a clay court one day and then a grass one, see the difference for myself. 
human
I've played a bit on concrete at the local park, but only for fun with the kids. My kids typically like electronic entertainment.
gpt
Oh yeah and especially kids these days i'm afraid are more and more electronic only entertainment. 
human
My son loves his game console, an Xbox.  They are so much better then the old Nintendo's.
gpt
Oh yeah but those old nintendos with the 54 colors were tons of hours of fun!
human
*eyes brighten* It probably doesn't really matter how many colors you have, I was happy with Pong at the time and that had just 2.
gpt
Right, it's all about the gameplay and that type of thing, but I think kids would notice the lack of colors today. 
human
*takes a step forward* I'm shocked that the Nintendo was discontinued as long ago as 2003, doesn't seem that long ago that it was the in thing.  Good talking to you.
gpt
*smiles* Yeah and it was one heck of a run!  Nice talking to you as well, have a good day. 