Make yourself appear larger by picking up children, leashing pets in, and standing close to other people. Open your jacket. Raise your arms. Wave your raised arms slowly.
Yell, shout, bang your walking stick or water bottle. Make any loud sound that cannot be confused by the lion as the sound of prey. Speak slowly and loudly to disrupt and discourage the lion's hunting instincts.
Maintain eye contact. Never run past or away from a mountain lion. Don't bend over or crouch down. Aggressively wave your arms, throw stones or branches, do not turn away.
Assess the situation. Consider whether you may be between the lion and its kittens, prey or cache. Back away slowly to give the mountain lion a path to retreat, never turning your back. Give the lion the time and ability to get away.
If attacked, fight back. Protect your neck and throat. People have used rocks, jackets, garden tools, tree branches, walking sticks, fanny packs and even bare hands to turn away mountain lions.