NEED HELP! !!!!!!!!!!!!!!!!!!!!!!!!!!

Lupita

So in 2 days I will be going on a date to meet this guy I've been talking to for 3 months . I'm extremely nervous . And I'm afraid I'll ruin this day idk, i just don't know how to be , I'm terrible at this type of stuff , anyway I asked my sister to come with just so I wont be alone ( is that a good idea or?) and also want to know if it's okay to kiss on the first date ?? Advice , tips ? Pleaseeeeee will be very much appreciated !!!!