Hi Reocruz,
Don't be intimidated, be brave and just go for it.
There are no rules, use whatever you have available, in a past San Francisco, CA Sketchcrawl someone used the back of a cereal box.
Look to see if someone already created a Sketchcrawl topic for the Philippines, if nobody has then come up with a potential plan of where you plan to sketch and create one for that location in your country... sometimes other lurkers may come forth, but even if nobody else but you is there, you took the first step.
Happy Holidays