Of our bikes Ciliegia has a manual choke and when it's cold I usually use it until I get out of the village, which is ~2km if we head south.
Teresa is part computer inside, so her ways are a bit more mystic
She controls the choke by herself, and I don't know for how long. One idiosyncracy I know about her is when it's around zero and she sleeps outside (at my workplace) for the first time in a longer period, she likes to stall when coasting and the idle likes to surge. After the next cold start everything is fine