You say... como te sientes? (if you know them well) or como se siente (in a more formal way of treating someone or someone you don't know that well).
Qué tal
Ask them
The words can I be your friend are: ¿Puedo ser tu amigo? in Spanish.
¿Cómo te sientes hoy? is the best way to ask "How are you feeling today" in Spanish.
You ask her best friend or one her friends if she does like you alot and if yes ask her
go to google translate or ask a spanish speaking friend
Puedo ser tu amigo(a)
if he still talks to her and gives her hugs , or if he only treats you lik a friend if you have to much of a feeling about it ask one of his friends to ask him
It means do want to be her friend not boyfriend but sometimes when you start to hang out she might get the feeling your into her
That would depend if you like it or not. You can politely ask them to stop or if you do like it try and hold their hand when it is on your leg and see what happens.
¿(En) dónde vives? = Where do you live (informal)?
Video games in Spanish is video juegos. For example if you wanted to ask a friend, Do you want to play video games?, you would ask, ¿Quieres jugar video juegos?
Firstly, ask him. You should share everything in a relationship, feeling wise.