There are many books on Ahnikam that provides details on practises of Srivaishnavas. You can learn this from an elder about such practises and through Sri Vasinava Dinacharya.
Importantly, Sri Vaishnavas should apply Thiruman on their forehead, perform Sandhyavandanam, Thiruvaradhanam, visit temples to worship Perumal. Apart from this they should address themselves as ‘adiyen’. These are the traits of a Sri Vaishnava.