What should i do with BJT when BJT has other two pins
I expect that:

S = substrate connection, the connection to the substrate on which the NPN transistor is made.

and

Th = a "thermal" connection, to be used for thermal simulations. For example, if the BJT is 300 Kelvin, that pin would carry 300 V DC (I'm guessing here, to be sure read the library's documentation).

I suggest that you use a different BJT, look in the AnalogLib library, there are generic NPNs there.

Or if you must use this model, do not connect the pins, place a noConn (from the basic library) on both pins so that the "not connected" warning goes away.