I keep mine in my hand and laying on my lap. Usually if I hear a noise I will attach my release early then sit and wait. I will slowly look for deer movement. If I see deer, I will either slowly stand (If I know I won't be detected) or I will shoot sitting.

My bow never leaves my hand, this way I'm never reaching for it or fumbling to get the wrist sling over my glove. It's not the easiest thing to get your had into, it tends to hang up.