Learn martial arts if you can. Or practice with a friend how to control a hug. If someone comes at you with open arms you can take his hands and hold them or dance or swing arms playfully, and choose whether to be pulled in for the hug or step in quick for a peck on the cheek and get out. Or you can put your hands on his shoulders so your arms are positioned to cage some space along your front and you don't feel smashed or subjected to too much full body contact.

I figure my boundaries are mine to defend physically, not to describe verbally. It's possible to avoid the bear hug or full body smashup gracefully or playfully and have an affectionate, friendly, touchy, parting that doesn't leave you feeling mooshed or overpowered. Practice with a friend. Practice with your parents. It's not too silly.

If you can't avoid a hug, ground yourself. Feel lines of energy going down your legs and through your feetn. Take a hip distance stance, run your energy through your legs, and hold your core. If youve played any sport you know the stance you were in when you were ready to move. This ready stance will belp you feel strong and grounded and in control. Move into the hug and hold the hugger. Participate in the hug. Stay grounded and balanced on your feet. Keep feeling your legs standing on the floor. This is yow you know you aren't being assaulted or carried off. Make sense?