WHY? Easy, people convert to Islam because it makes sense, because it's common sense, because its logical, because its a way of life, because its about cleanliness...and HOW? Easy, they simply declare their faith in God and His last messenger.
For me, Islam is everything. It is my only passion, it is the only cause/creed for which I sacrifice my life for, it is the neucleas around which my life rotates. I found everything I needed or could ever ask for in Islam. I have believed and I am proud to say Islam is my religion.