addition to 7~Don't make a weapon you can't control(as in, you don't want to be whacking people with it every time you turn around) --- Don't make a COSTUME you can't control. I see a lot of people with huge costumes. Some have guards to prevent people from getting in their blind spots while others knock things and people over on a regular basis.
Test Drive Your Costume... Break in shoes, bounce around to make sure things aren't gonna fall off, hike up, or break.
Thread, Super Glue, Duc Tape, and zip ties can at least temporarily fix most costume issues... Sometimes even for the rest of the weekend. So be prepared.
Clean Your COSTUME. I see so many people wear their costume year after year and never take the time to clean it. Your in it all day... sometimes 2-3 days in a row. It's gonna smell. Take the time to get some fabreez or a hand held steam cleaner and use it each night. It will make the people around you happy and make you feel much cleaner and more comfortable in it. This only helps if YOU also take a shower.
jyrotika
Don't try to take the elevator if you can avoid it. Taking a flight or two of stairs (especially down) is WAY easier!
EXCEPT if you have LONG costumes or complex costumes. The last thing you want to do if fall down stairs or get your costume stuck in one of the escalators.
MinaUchiha2
Or saying Konnichiwa when it isn't afternoon
Actually Konnichiwa means Good Afternoon AND Hello less formally.
Ohayo = Good Morning (+gozaimasu = polite/formal)
Konbanwa = Good Evening
As it is most Japanese I know consider any time after 10am till sundown afternoon... so a majority of the early day and evening Konnichiwa would be acceptable as a polite use.
((taken straight from my family and friends who are Japanese and other variations of Asian, some of which were born in and/or lived in Japan))