some guys asking for my ip number? that's not safe right?

My public Ip? he’s asking over msn. Saying to goto showmemyip.com.

I pretty much stalled and he’s gone now but I don’t think I’m meant to - people use that for hacking right?

Go to Otions>Privacy and tick ‘Only people on my Allow List can see my status and send me messages.’

Do not add anybody to your allow list who you don’t know.

I think it’s standard procedure to with hold personal info. I would PM to quiz him.

Yeah, you did the right thing. Don’t release any information about yourself on the web that you aren’t happy with the world knowing.
I absolutely would not PM the person concerned, in fact I’d probably avoid contact, but that’s your choice.

Nobody ever has a good reason for asking for your IP address. Don’t give it to anyone