how would you feel if someone tugged on your clothes and forced you into hugging them and taking pictures with them? would you appreciate someone grabbing you like that? no. no you would not. so why is it okay to do it to band members?
You introduce yourself to them with a handshake and if you are lucky enough, well as all my have experienced, you will get a hug. Just don’t force it, that just makes you seem desperate and sad. Oh and always ask if it’s okay to take a photo with them.
Band members are people too!
PS: Never bother them whilst they are having a meal or if they are with their families.