If you want to get closer to your girlfriend or boyfriend or you just want to have great time, some emotions can help you with realizing that. If you are enough courage you can have a really worth to remember few hours. How? Do some street art together. :)
But to do this leagally and in safety, let's leave the paint on the side. You can make your city more beautiful in "polite" way. By using a stickers, posters or another things which are easier to remove. Here are some examples how to do street art and not spoil the streets.
Here are some examples of no-painted arts:
artist: Jean-Yves Lemoigne