Assalamu alaikum Wa Rahmatullahi Wa Barakaatuh.

Respected Moulana.please advise me with regards to shaking hands when greeting my fellow Muslim brother.When I extend my hands then some will give their elbow,some will give a fist,some Will give their arm.I feel shy to extend my hand now.Because I am in the habit of making salaam to whoever I meet especially in the Masjid.

Jazakallah

It is not permissible to adopt the satanic forms of greeting, e.g.
elbow, etc.  If you know that a person  will not  adopt the Masnoon
musaafahah, then do not offer your hand. Shaitaan is gripping their
brains.

May Allah Ta’ala keep you with aafiyat.

Was-salaam

A.S.Desai