Holi is the festival of colour but these colour also harm your sensitive parts like eyes.so be careful of it and also you must buy good quality of colours .
In Holi you must not waste huge amount of water , I am not saying not to use water but use little water.
Most important you must not forcefully play with other .do not play dirty tricks in the name of Holi.
Some person thought that in Holi we can do any thing to other wether it’s a men or women.
That’s all be safe .do not waste water.Happy Holi.