Should you kiss a boy you like in the first meeting ?

You only really need one reason and that's for not doing it. The reason is this: you want a boy to like you first for who you are. If he's asked you out on a date, then you already know he is physically attracted to you. There's a lot to be said for getting to know one another first before moving to the next level. Of course, a kiss on the cheek and a warm hug is a nice way of letting him know you are indeed interested in getting to know him better.