There are a lot of things that makes me smile but then there are those little details that can just melt your heart away and you can't stop but smile for example for me it`s
1. silly lovely SMS or messages on web-sites as vkontakte and so on
2. when children tell me "i love you"
3. when other people smiling makes me smile. that's why i always want to make other people smile… i dunno.. it just makes me feel good inside
4. when I hear a songs on radio which reminds me the pleasant moments and lucky days
5. raining
And I can guess that many people would answer on this question as friends makes them smile and I`m not an exception. There are many ridiculous situations which force me even laugh.