how does a typical rivus get inside a cell?

1 attachment
2 invasion
3 release self RNA/DNA
4 integrate
5 translation
6 host cell lysis/budding

More specifically:
Attachment is a specific binding between viral capsid proteins and specific receptors on the host cellular surface.Attachment to the receptor can induce the viral-envelope protein to undergo changes that results in the fusion of viral and cellular membranes.following attachment, viruses enter the host cell through receptor mediated endocytosis or membrane fusion.

Not very sure what you mean by using "trick".

First of all, it should be "virus" instead of rivus.
You asked how the virus get into cells. Each type of virus has its own target cell (or host cell), it can not get into any type of cells.
Virus is consisted of genetic materials, like DNA or RNA and some types of proteins around the former materials. Some protein of virus has the function of recognising the target cell.