I'm usually looking for multiway pots when I decide to limp with hands that have a high deception value like 67s or even hands like 79o (nearly every hand actually ^^).

The reason is, unless I flop the nuts or a very strong hidden hand, I can easily get away. And if I do flop the nuts, there is a higher chance someone hit second best hand in a multiway pot.

I only do this if I can be quite sure no one will raise preflop (so usually when some players limp before me, and passiv players after me are probably also going to limp, or I'm in the blinds and everyone limped).