not always a flirting tactic obviously but offering you a bite of their food, a sip from their cup, bringing you an extra bottle of water or snack without being askedāeven if you donāt need anything the gesture is š„µš„
(full disclosure iāve never been aware of anyone flirting with me *in the moment* and didnāt know my partner ever had before we dated until he told me a decade into our marriage that yes, actually, of course he was flirting with me š« devastating)