If there is someone that makes you feel uncomfortable, for ANY reason, then you should let them know. You do not owe somebody attention nor do you owe them your time or energies.
If you are not interested or do not have the capacity to engage you are completely in your right to say so. That includes touching without asking, coming on too strongly, saying an offence remark or simply not making you feel welcome or comfortable. Whilst public play might happening in front of you, it does not mean you are entitled to join.
Unless it's an absolutely enthusiastic YES, everything else must be considered as a NO. People can change their mind, therefore remember that a YES can always turn to a NO and that must be respected every time!
Do not coerce or pressure others to interact with you. If you have recieved a no, don’t take it personally. Rather, feel you can thank them for expressing clearly their boundaries.
A key pillar to creating an atmosphere of trust and respect in our spaces is ensuring that everyone is respectful to one another.