Not the biggest & leanest guy here.
But here what I have had experience:
1. Nurses were asking me, what my ethnic background was. This is what I remember
N: What are you?
Me: Ugh, what do you mean? I'm human?
N: *Laughing* I mean your ethnic background.
Me: Oh, I'm Chinese
N: Really? Never seen built Chinese. Usually they are skinny and shorter.
Me: **feels good & gave her smile**
2. I feel like people are more friendly to me than when I knew nothing about bodybuilding (not saying I'm expert now either, still have lot of things to learn)
3. Random guys at gym
R1: Man, your chest looks big, I wanna be like that.
R2: Hey man, how do you train your calves
R3: Where are you from (just because I'm not white lol)? You look big!
R4: You need a bigger t-shirt. You almost rip it up.
R5: **saw me entering the gym** Holyshit man, what you're taking, I want something like that
R6: Nice traps
4. Random guys at the same building where I work
C1 (he had competed when he was teen): Man, do you compete?
Me: No, I do not think I have the built to compete.
C1: Yes, you do
Me: **wanting to get even bigger**---+
Another guy work at the same building saw me at gym
C2: **stopping me** Hey come here
Me: Hey what's going on?
C2: **complementing my arms & comparing his to mine, then laughing**
Me: **laughing, kinda felt awkward but nonetheless felt good**
5. Got offered money for doing 'something' that would be illegal lol
6. Senior at work
S: He (referring to me) probably could break the door if he wants to.
7. My boss
B: How long did it take you to build muscle?
B: I know you have lots of muscle but when you do this kind of work, you need to be more patient (I was laughing)
In general, I see how people treat me differently once I workout. It can be because my confidence or because of the physical appearance. But those kind of things are the one keep motivating me.