You can (very, very carefully!) pet the top of their thorax when they’re not flying, such as when preoccupied with feeding at a flower, although as TheTechnician27 outlined, it’s probably not good for them. Better is if you can find one that’s struggling to fly (semi-common this time of year, when things are still warming up) and then you can warm the little guy in your hands if they’re cold or chauffeur them from flower to flower if they’re hungry. Often this will help them regain the strength to keep flying, but sometimes they never do; I assume in these cases they’re dying, but at least I gave them some hospice care. It’s very strange to deposit a struggling bee on a flower, watch it feed, and then see it wiggle its little feet in the air like it’s calling the magic carpet back for another lift.
You can (very, very carefully!) pet the top of their thorax when they’re not flying, such as when preoccupied with feeding at a flower, although as TheTechnician27 outlined, it’s probably not good for them. Better is if you can find one that’s struggling to fly (semi-common this time of year, when things are still warming up) and then you can warm the little guy in your hands if they’re cold or chauffeur them from flower to flower if they’re hungry. Often this will help them regain the strength to keep flying, but sometimes they never do; I assume in these cases they’re dying, but at least I gave them some hospice care. It’s very strange to deposit a struggling bee on a flower, watch it feed, and then see it wiggle its little feet in the air like it’s calling the magic carpet back for another lift.