How to become Muslim:
Converting to Islam is very very easy. About 30,000 people convert to Islam annually in the US (United States) alone! To become Muslim you have to recite the Shahada. The Shahada is belief in the one God, Allah (SWT) and Islam. The Shahada is: Arabic: اشهدان لآ اله الآ الله Ù…Øمد ر سؤ Ù„ الله.
Transliteration: Ashadu allah illah ha illallah muhammadur rasoollah.
English: I bear witness that there is no god deity of worship except Allah and Muhammad (SAWS) is his messenger.
That's all you have to say to become a Muslim! If you become Muslim, then all your (previous) sins will be erased and his (good) deeds will be doubled. The person who invited him to Islam, he will get the rewards that convert did for the rest of his life. This is why you should do Dawaah (Inviting to Islam), so Inshallah you will convert lots of people to Islam.