I will take my friendliest BP outside for what I call "yard patrol"... usually late evening-ish... we just stroll around the yard investigating different plants and flowers - usually he is hanging around my neck - sometimes when he seems really interested in a certain plant or flower, I will let him investigate it a bit - he really seems to like certain types of iris - oh and roses, he really likes to smell roses... he is pretty much a lush though, and doesn't like to stray too far from my handling.