let me teach u =) im a kia/perodua salesman...if the customer look interested remember to ask them whether they wan trade in or not..if they wanna trade in,take down their car model,registration number,finance,branch,transmission..ask them for their hp number so u can call him/her when u found the market price for that car..dun so fast go and call 2nd hand car and ask them market price for that car bcoz if u do so they wont giv u their hp num..and remember to ask them how much they would let go their car..after they leave go and ask for the market price..if the price is ok then u call them back and tell them the price(let's say market price is 40k,u tell your customer its 38k)..ask your customer how much she wan..then she will say 39 or 40k bcoz they thought the market price is 38k so they wont ask for much..then after that u ask them whether they can confirm boh if they wan 39k..if they say yea then u mar close them liaoler..this work for me in kialer..but i know in perodua u all dun hav so many margin to play with...hope this help..=)