Examples:

• Now is the time to jump in with both feet.
• And I know I need to jump in with both feet.
• And the only way you'll know for sure Is to jump in with both feet.
• Uh, yeah, but he is on alert and ready to jump in with both feet if needed.
• I figured the best way to overcome it was to just jump in with both feet.
• So I think I'm gonna take the risk and jump in with both feet and see if this new thing calls to me.
• So how can we be Pontius Pilate in one case, while in the other we jump in with both feet, as it were, into the internal affairs of a country?