I am new to KC and i don't know how to put a tilak. I went to an Indian shop in my area and asked for a Gopi Chandan. The shopkeeper showed me namakatti. I don't really know what it is and whether it could be used to apply tilak. I can't find a Gopi Chandan at my place here. If namakatti can't be used to apply tilak, what else can be a Gopi Chandan substitute?

I have heard about water tilak. But, I would be really happy to apply a visible-to-our-eyes tilak.

Hare Krishna!