If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Kissing on the public place is very special, that too when it is browsing centre. You don't want people to glare at you while you are enjoying your time with your partner. As soon as no one is around or not looking you should sneak in a kiss. Make sure that camera is also not focusing you. And make this young couple to kiss passionately without getting caught as otherwise you will lose a life. Just make them kiss watchfully to fill the kissing loader within specified time duration in each level.
Use mouse to play this game.