Practice with the English native speakers will not improve your communication skill unless you know the basics. It is the anotation and reduced sound. Improving your spoken English ? you need to learn the spoken English first then practice. Examples: Did he, pronounce didee? "h" is silent, Does he (duzzy), Was he (Wuzzy), Is he (Izzy). My name is... (My_nay_miz)., Hold on (hol_don)., turn over (tur_nover) Tell her I miss her (Teller_I_misser) I will let you know ( I'll letcha know) t_y change to "ch" If you want to pick up from conversation with the native speakers, it will take you years. But, if you learned the basics and practice, it will take you months.

你好 Adam Wu, 我可以帮助你，你也可以帮助我学习中文码？我的中文说的不好！

Hi Adam, this Italki site has many suggestions for improving your oral English. http://www.italki.com/knowledge/contribution-Spoken+English.htm

Hi Adam I'd be happy to help you with your spoken English. Let me know if you'd like a free trial lesson. Corina

Hi Adam. Since you are an advanced student, you may benefit mostly from conversation practice. You can find may partners and teachers on the "Language Partners" and "Language Teachers" pages. Send them some notes or open a chat with someone.