Sending kisses to a girl with a hand gesture can be seen as a sweet and affectionate gesture, rather than embarrassing. In many cultures, blowing kisses or making a kissing motion with your hand is considered a non-verbal way to express affection, love, or admiration. It's a common gesture used to show someone that you care about them or to convey your feelings in a playful and lighthearted manner.
Of course, how the gesture is received can depend on the context and the relationship between you and the girl. If you have a close and friendly relationship, she is more likely to interpret it positively. On the other hand, if you barely know each other or if the context is inappropriate (e.g., in a professional setting), it might not be as well-received.
As with any gesture or expression of affection, it's essential to consider the individual's comfort level and boundaries. If you're unsure how she might interpret it, you can start with less intimate gestures, like a smile, and gauge her response before progressing to more affectionate gestures like blowing a kiss with your hand.
Overall, sending kisses with a hand can be a charming and endearing gesture when used in appropriate situations and with genuine intentions. Just be mindful of the context and the girl's feelings to ensure your actions are well-received.