Dreamwalking Options

Anyone know how to do it? Although I wouldn't wanna scare the crap out of any of my friends and permanently alter their view of reality whether they like it or not I always thought it would be real cool to be able to meet people in dreams. In my own lucid dreams I've tried waking up dream characters of my friends just in case they were actually my friends dreaming too but the results indicated that they were not my friends just dream characters of them. Can anyone here walk into other peoples dreams and if so how?

as you fall asleep, think of yourself watching them doing something, not really looking at it, but just watching them, and they will probably appear in your dream

shared dreams are just shared dreams, imo - one of those well 'i woke up while we were both fighting it but did we defeat the monster or whatever' kind of things

um, what are your motives in entering others dreams?