Once you fall in love with somebody,you will certainly want to know if he/she thinks the same with you,right?
What will be the best way to get the result and avoid embrassment?
This small card will be the ideal item.How it works?Just ask he/she put the thumb on the black liquid crystal panel for 10 seconds,then it will changes color,maybe blue,green,red,or just black.Each color means a different feel between you two.
Take the instructions on the card for reference.
The card is a perfect advertising gift.There is much space to advertise.Small card,big advretisement.