Sketch your signature in big letters on an size A4 sheet of paper with a black or blue ballpoint pen.
If you want an even better result, buy normal wall paint from a regular paint store. Use this to paint a layer on the wall with a paint roller before spraying. You will also need a tray for the paint roller. Doing this will help cover up old graffiti on the wall so that it does not show through your “piece” (the name for the composition of letters graffiti artists make). It also will make the background look better and make your “piece” stand out more from the wall. Additionally, other “pieces” that have been made earlier will not distract from your “piece”.
You can also make something called an “inline”, this is almost the same as an outline, but it is complicated to make and will definitely ruin your “piece” if you do not do it properly. Something the “shining” will also do because these effects are advanced. The “inline” is a line that goes on the inside of your outline in all the letters. This can be very cool, but it is not in all “pieces” this effect is suitable.
After this you can also dedicate your “piece” to someone, and write 4: which means for e. g. “My buddies”. You can also write a greeting to someone with Yo. E. g. Yo: Eric and King D. You have to know the people you are greeting; you can not greet to or dedicate your “piece” to, for example, a big graffiti artist you do not know because that is like “saying” that you know him or that he or she said it was okay for you to do it. If you have something smart to say that is short or know a good line from e. g. a rap song you can also write it.
If you do not take a picture at once, remember that at legal walls your “piece” can get painted over at once. Think of the composition when taking the picture, try to get the “piece” as much in the middle of the picture as you can, and make sure that the “piece” is perfectly horizontal in the lense.