Siam BTS Station is on Rama 1 Road near the intersection of Phaya Thai Road. For shopping in this area there is the Siam Center, Siam Paragon, Going further away from Siam BTS Station is MBK, Tokyu, Centre Point, Central World Plaza, Gaysorn and many other large shopping malls.
In Central Plaza you will find many restaurants including Gustoso Italian Restaurant if your looking for a meal. At the Siam Paragon you will also find many restaurants serving everything from Thai snacks, French cuisine, Italian, Indian and many other food favourites from all over the world.
If you want to go on a boat trip round Bangkok you can walk to Klong Saen Saep and catch the regular boat service to Pratunam, from there change boats to the pier near Ratchadamnoen Avenue.
For cinemas there is the Lido, Grand EGV, Scala Theatre plus several others.
Tourist destinations include Siam Ocean World, Erawan Shrine amongst others.