@kmahly - If you go to the Exchange page and then change the filters in the top left which initially are set to "Showing All studying X from All Countries". Click on "All" and change it to Friends and then change the default language to All languages and you should be able to see all your friends activities.
when i was started to learn English language i was at 0 level now i am doing improve in English language but my main problem is grammar. i am not able to prefect in grammar and another is i have no any native friends for the speaking practice and writing improvement please help me.
Yes, my thoughts, too. Maybe future updates could include such changes. I would love for LingQ to be more social. As it stands now, I feel like posting a status on my page is not very useful if the only way a person could see it is if they went directly to my page. Would be better if those types of things showed up in a stream.