I can't understand the meaning of the sentence below(yellow colored one), could you tell me what it says?

Before I go I would like to give a big thank you to all the experts featured. You all nailed it with your responses.

What's the meaning of "humor niche"? (i.e. the meaning in this QA http://www.warriorforum.com/main-internet-marketing-discussion-forum/413424-anyone-have-experience-humor-niche.html)

Hello, how is everything going with you?
Hopefully pretty good!

Ok, about your questions,
- could you tell me which sports are most popular in your country?
Here in Mexico, the sport which is the most popular, definitely, is the soccer, you can see people playing in improvised courts, no matter the socio-economical place you're in. People can use a ball or whatever think they can kick.

- what's your own favorite and why do you like?

I found the sentence "Mega face plant!" on this blog and want to know the meaning of it.

Hello, I introduce me. I'm French, I live in the countryside, a little village where there isn't shop. we need the car to go work, to go the cinema, to go the shopping. But here all is quiet. I don't know if I like the style life or if I  prefer the city with the cinemas, the museums, the shops.

- Hi, Katya!
- Hi, Sveta! What's new?
- Yesterday I watched a cool movie, which impressed me very much.
- Which movie?
- The movie is called "Be my boyfriend for 5 minutes". It's a wonderful youth comedy.
- An American comedy?
- Yes, but really it's not a silly movie. This movie has something to think about.
- I've not watched this movie yet. It's new?
- No. It was released five years ago.
- What the plot is about? I'd like to watch this movie.

You can say "the dress suit you" and it means the color or taste of the dress is good with you. 

Then, if you want to say the color or taste of the plate is good with meal, how do you say it? Do you use "fit"? (ex: the plate fits into meal)

Hello again. Let me share this practice about a movie I have seen today. Maybe will be a little bit complicated for me but I will try!. This movie is starring by a Beautiful woman!! Halle Berry!

Hello ! My name is Juliette and I live in Paris.

I aim at improving my english and I will be very happy to help you to improve your french !

I am currently preparing for an exam (oral test in next October). The issues I would like to discuss with you are politics (UK and US), economics, social matters... Readers of "The Economist" are welcome (not because of your liberal ideas but because of the issues that the magazine tackles !)

Hello ! My name is Juliette and I live in Paris.

I aim at improving my english and I wil be very happy to help you to improve your french !

I am currently preparing for an exam (oral test in next October). The issues I would like to discuss with you are politics (UK and US), economics, social matters... Readers of "The Economist" are welcome (not because of your liberal ideas but because of the issues that the magazine tackles !)