Although it was just luck really. It was like a 'Lucid Dream' inside a 'Normal Dream', and when I woke up back to my 'Normal Dream', I was telling people about, including a 'Dream Character' in a lorry. Here's how it went:

Me and some other people (about one or two) came into my room and collapsed on my bed. The room was quite dark due to outside being dark. I fell asleep and woke up in the same room but by myself. I then realized I was dreaming. I kind of got the idea that there was someone else in the room, so then I went all Dragonball Z and started trying to break free, because I felt extremely stiff, it took me about three seconds to realize that expectation was the key. I then started screaming as if I was trying to charge up (just to increace my expectation). I don't know if I succeeded though. Everything went blurred from then on.