Sightseeing, someone interested? (Bangkok)

Hi everybody,

I just arrived a week ago and will be here for nearly three months. I would like to do some sightseeing and am wondering if there is somebody else interested to join in from time to time for a spot of sightseeing on the week-end?
Of course any suggestions as to what to visit and what to do here around Christmas time and New Year are welcome as well.

Thanks in advance

Beatrice