You can do so with a prayer asking God to assist you with something in your life. Such as asking to receive a message or sign from a departed loved one. The key is to be specific in what you would like to receive.

“But, Jeanne, I think I am already noticing signs and I want to know what they mean?”
Stay with me here!
I know you are already receiving signs, the biggest problem I see for people is that they are not asking for answers from the right source, God.
They are leaving their energy open to receive from the universe or nowhere in particular.
So yes, unless you are aligned with God first, signs will come but they will be low vibe ones, with scattery energy.

With God your signs will be on point and direct. You won’t question, doubt or wonder if “it” was meant for you, you will know and trust it is because you believe in the power of His grace!