Been riding for 1 year plus liao ... the entire riding
experience, I only pillion people twice. Once when I pillion mom to
Chinese Garden. The other time, pillion my frend to Changi see air
show. Yah, hand very the suan.
Still remembered the time when we go Changi that time, I went to my
friend's place to fetch him. Then there's this U-turn when we came
out from his place. I couldn't negotiate the U-turn. Turned through
270 degrees niah, the bike started to lean. I quickly steer
straight. Ended up I had to stop because I reached the opposite
kerb liao. Then reverse slowly before turning through the
remainding 90 degrees. Quite malu. Because got this taxi behind me,
think the uncle must be wondering what the 2 jokers doing with the
bike. hee hee 
Oh ... guess wat ... I never get to pillion anybody during bike
lesson due to some matters.
Anyway, a friend told me her experience on a bike as a pillion.
Think the rider din brief her about pillioning as he thought my
friend appeared sporty and should know how to ride as pillion. So
when the rider leaned the bike at corners, my friend became very
frightened, and leaned to the opposite side; she thought she was
supposed to lean the opposite side to counter-balance her friend.
After that, she dare not pillion anymore. So lesson .... always
brief your pillion on riding SOPs.