Language speak practice

Recently I understood that I have to practice hard in speaking on English (yep, I learn it). Fortunately, we are on a nice site with a lot of kind and responsive people who want to help with this and who I can help with my native language (Russian). It seems that there is no problem. But I have no expirience of speaking with native speakers and chatting here. So my questions are:
1) How do you usually orginize the speaking process? Both you and your partner tell something to each other and then the listener points out mistakes or maybe you just have common conversation and mistakes aren't corrected?
2) Or maybe you ask your partner in your language and partner answers in his language?
3) How I can help people who want to speak Russian? I'm not a professional teacher or tutor and don't know a right way for best language learning. So what do you recommend?

p.s.: The text is both the discussion and the note waited your corrections.

[Good work.  Actually, you don't have to be a teacher here unless you actually want to charge money.  Sometimes, people just want to listen to another person speak in the language they want to learn.  Others want their mistakes corrected.  There are no set rules here, outside of being polite and considerate of the other person.  You and your language partner or partners can decide on how you want to proceed.  Good luck.]