1) Should I practice anything before actually carrying a passanger? I've heard people suggest strapping some heavy item to the back of my bike to get a feel for the added weight. I've also got my cousin to volunteer as a test dummy. She's pretty small, at only 110ish lbs so probably would be a good start.
2) What's the max weight you all would recommend for a 250? I'm about 185 and the gal I'd like to eventually zip around with is about 155ish. That should be fine for tooling around surface streets or cruising through countryside. I dunno if I'd want to try doing 80 on a freeway like that though.

3) Other then brake sooner and take turns slower, is there anything else I should know about carrying a passanger? Obviously have them keep their feet up and lean with me.
Thanks!