Yeah and I dont think I can do that winve I'm not good at faking things
I could
Then, instead of faking, you could try to make your friend comfortable whenever you can. Learn the signs in body language that tell you about it - like crossed arms, putting a bag between you, rapidly looking around. Read on that. It can tell you many things - like when they wish to change a topic or get bored with what you are doing at the moment. Anyway, isn't it a part of friendship to take care of yours and your friend's comfort? There are many books and resources available on the topic. Maybe you could even check in your local library?
Another thing is to care about what they say - and remember things they like and dislike. For example, remembering their favourite tea, sweets or soft drink when you two meet and make sure it is available. Things like these. Also, birthdays and other dates.
Well, at least those are the basics.