One day a Scottish guy and his girlfreind were walking when the Scottish guy says, You want to hold my hand, dont you?

The girlfriend replies, How can you possibly know that?, and the guy goes, The twinkle in your eye.

So, they hold hands for a bit, but a little while later the guy goes, You want to kiss me, dont you? and she goes, How can you possibly know that?, to which he replies, The twinkle in your eye. Sure enough, he is given a kiss by the lass.

Finally, the date is over, and the girl says you want to make love to me, dont you?

He says, How can you possibly know that? Is it the twinkle in my eye?

She says, No, its the tilt in your kilt.