Can this be said when talking to a friend:
I have no problems with approaching people but my trouble is to keep them interested.
Thank you. The second part of the sentence was a typo. I've read and acknowledged your corrections, but I was just wondering if the first part of the sentence made sense.
It sounds kind of like - I'm okay with approaching people, it's not wrong.
When I'm trying to say: I meet and introduce myself to people with ease.
Or does it mean the same thing?
I have no problems with approaching people but my trouble is keeping them interested.
Yes, that's all OK. But my real objection was "my trouble is".
You don't need 'with', though you could use it.
I can only repeat that you were not wrong, that it did make sense, but that it was not natural. It seems that a few readers have agreed that my version was more natural, and that was my only point.