It is narrated from the Prophet of Islam (PBUH) who said: Do not look at the large quantity of individuals Salaat, fasting, Hajj, giving gifts, and night prayers; but look at their truthfulness and trustworthiness . It is also narrated from Imam Baqer (AS) who said: It is not enough for someone to claim to be a Shia Muslim just because he/she considers himself/herself to be our friend (the friend of Ahlul Bait (AS).
Our Shia is only the one with Divine Piety. The signs of our Shia Muslims are: Courtesy, trustworthiness, kindness to parents, truthfulness, helping the poor, and remembering God at all the times. Our Shia is the one whose mouth does not open except for saying good things. The one who just says: I love Imam Ali (AS), but does not practice Imam’s traditions, is not a Shia .
 Beharul Anwaar, Vol. 75, page 114.