I hanged hung out with a girl which who I found on Couch met while web Surfing today. (Hung is past tense for hang... There are quite a few words which are confusing that way such as ride = rode, fly = flown, hang=hung, but as you practice more you will start to learn which you can add "ed" onto to make past tense like skate = skated or walk = walked)

She lived lives in France, but she was born in China and moved to France when she was six. (Because she is still in France you should use present tense when refering to her home. Also I don't agree with the other persons correction because you should never use "but" twice in the same sentance and it sounds natural the way you wrote it. Good use of commas!)

She was is really clever and I enjoyed to talk talking about a lot of topics with her. Seeing meeting new people through Couchserfing web surfing has been so exciting excited so much!

Couch Web Surfing

I hanged hung out with a girl which whom I found on Couch surfing the web today. She livesd in France, but she was born in China and but moved to France there when she was six. She was is really clever and I enjoyed to talking with her on many about a lot of topics with her. Seeing Meeting new people through Couchserfing is so exciting. has been excited so much!

When you describe the qualities of a person who is still alive, use present tense.  Using past tense means that those qualities no longer apply.