What are some good techniques for joining 2 wires without applying heat ?

Question

What are some good techniques for joining 2 wires without applying heat ?

Answer 1

just hook them together

Answer 2

Wire nut or split bolt.

Answer 3

A wire nut would be good.  Stick wires in, twist, there you go.  Any hardware store.

If this is not house current, but, say, speaker wire, you can just twist them together and tape over the splice.